STB/STW – Safety Temperature Limiter and Safety Temperature Monitor (701150)

Name: STB/STW
SKU: STB/STW
Availability: InStock

SIL and PL approved.

STB/STW Features

Can be configured as safety temperature limiter (STB) or safety temperature monitor (STW)
1oo2D architecture
Approvals for DIN EN 14597, SIL, PL (Performance Level), UL
Two relay outputs can be used as pre-alarm or limit value alarm
Pre-alarm absolute or adjustable as a margin from the limit value
LCD display with background lighting and plain text display
Setup program for configuration and archiving via USB interface
Wide voltage supply range from 110 to 240 V +10 %/-15 % or ACDC 20 to 30 V
Internal and external unlocking possible

Brand: JUMO
Usually in stock

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The safety temperature limiter (STB) and safety temperature monitor (STW) enable early and reliable detection of risks which could potentially result in personal injuries, environmental damage, or destruction of the production plant and production materials.
Its primary task is to reliably monitor thermal processes and to switch plants to a safe operating status in the event of malfunctions.
The measured value at the analog input can be recorded by various probes or standard signals. Limit value exceedance is indicated by the installed LED K1 and K2 (red) for each channel and the integrated alarm relay output switches the plant to safe operating status (alarm range).
The device concept meets the stringent requirements of DIN EN 61508 and DIN EN 13849. The 1oo2D structure ensures reliable detection of faults, meaning that the device concept can also be used for applications subject to the new Machinery Directive 2006/42/EC.

Protective, regulation, and control devices
Safety temperature monitor (STW)
Protective temperature monitor with automatic reset for heat-generating plants. An automatic reset occurs upon activation after the probe temperature has risen or fallen above/below the set limit value by the amount of the switching differential.
(Modes of operation 2B, 2K, and 2P)

Safety temperature limiter (STB)
Protective temperature limiter for heat-generating plants that can only be reset manually or with a tool.
(Functions 2B, 2J, 2 V, 2K, 2P and adjustable with special tool)

Analog inputs

RTD temperature probe

Designation	Measuring range	Accuracy 2/3-wire circuit¹	Ambient temperature error
Pt100 DIN IEC 60751:2008	-200 to +850 °C	0.5 %/0.1 %	50 ppm/K
Pt1000 DIN IEC 60751:2008	-200 to +850 °C	0.5 %/0.1 %	50 ppm/K
Connection type	Maximum lead wire resistance 2-wire circuit 15 Ω, 3-wire circuit 30 Ω
Sampling rate	210 ms
Error tolerance time	≤ 5 s: time taken into account for all diagnostic tests
Input filter	Digital filter, 2nd order; filter constant can be set from 0 to 100 s
Special features	Single probe Pt100 2-wire, display can also be programmed in °F

Thermocouples

Designation	Measuring range	Accuracy¹	Ambient temperature influence
Fe-CuNi “L” DIN 43710: 1985-12	-200 to +900 °C	0.4 %	100 ppm/K
Fe-CuNi “J” DIN EN 60584-1:1996-10	-200 to +1200 °C	0.4 %	100 ppm/K
Cu-CuNi “U” DIN 43710:1985-12	-200 to +600 °C	0.4 %	100 ppm/K
Cu-CuNi “T” DIN EN 60584-1:1996-10	-200 to +400 °C	0.4 %	100 ppm/K
NiCr-Ni “K” DIN EN 60584-1:1996-10	-200 to +1372 °C	0.4 %	100 ppm/K
Pt10Rh-Pt “S” DIN EN 60584-1:1996-10	-50 to +1768 °C	0.4 %	100 ppm/K
Pt13Rh-Pt “R” DIN EN 60584-1:1996-10	-50 to +1768 °C	0.4 %	100 ppm/K
Pt30Rh-Pt6Rh “B” DIN EN 60584-1:1996-10	0 to 1820 °C	0.4 %²	100 ppm/K
NiCrSi-NiSi „N“ DIN EN 60584-1:1996-10	-100 to +1300 °C	0.4 %²	100 ppm/K
W3Re-W25Re “D”ASTM E1751M-09 (bis 2315 °C): 2009	0 to 2495 °C	0.4%	100 ppm/K
W5Re-W26Re „C“ ASTM E230M-11: 2011	0 to 2315 °C	0,4%	100 ppm/K
Cold junction	Pt100 internal
Cold junction accuracy	±1 K
Sampling rate	210 ms
Error tolerance time	≤ 5 s: time taken into account for all diagnostic tests
Input filter	Digital filter, 2nd order; filter constant can be set from 0 to 100 s

1. The accuracy refers to the maximum extent of the measuring range.
2. The accuracy is garanteed above 300° C

Direct current

Measuring range	Accuracy	Ambient temperature influence
4 to 20mA, voltage drop < 2 V	0.2 %	150 ppm/K
Scaling	Can be freely programmed within the limits
Sampling rate	210 ms
Error tolerance time	≤ 5 s: time taken into account for all diagnostic tests
Input filter	Digital filter, 2nd order; filter constant can be set from 0 to 100 s
Special features	Single probe 4 to 20 mA

Analog output

	Signal type	Accuracy	Residual ripple	Load influence	Temperature influence	Load resistance
Current	4 to 20 mA	≤ 0.5 %	± 0.5 % at 300 Ω	± 0.05 mA/100Ω	150 ppm/K	≤ 500 Ω
	0 to 20 mA
Voltage	2 to 10 V	≤ 0.5 %	± 0.5 %	± 15 mV	150 ppm/K	÷ 500 Ω
	0 to 10 V

Binary input

Connection	Function
1 floating contact	Unlocking, key inhibit, level inhibit can be configured

Relay outputs

Relay output KV	Relay (changeover contact) without contact protection 30000 switching operations at a switching capacity of 250 V, 3 A, 50 Hz (resistive load) or up to DC 30 V, 3 A. Minimum current DC 12 V, 100 mA.
Relay output alarm	Relay (changeover contact) Contact protection circuit: fuse cut-out 3.15 AT, installed in the pole contact arm 30000 switching actions at a switching capacity of 230 V, 3 A, 50 Hz (resistive load) or up to DC 30 V, 3 A. Minimum current DC 12 V, 100 mA.

Measuring circuit monitoring

	RTD temperature probe in 3-wire circuit and double thermocouples	Thermocouples		Current 4 to 20 mA
Overrange and underrange	Is detected LED K1, K2, KD, and KV are lit; “>>>>“ flashes in the display for overrange, “<<<<“ for underrange.
Probe/cable break	Is detected LED K1, K2, KD, and KV are lit “>>>>“ flashes in the display; relay output alarm is inactive			LED K1, K2, KD, and KV are lit; “>>>>“ flashes in the display; relay output alarm is inactive
Probe short circuit	Is detected LED K1, K2, KD, and KV are lit “<<<<“ flashes in the display; relay output alarm is inactive		Is detected by difference monitoring of the analog inputs	LED K1, K2, KD, and KV are lit; “<<<<“ flashes in the display; relay output alarm is inactive

Voltage supply

Voltage supply	AC/DC 20 to 30V, 48 to 63 Hz	AC 110 to 240V +10% /-15%, 48 to 63 Hz
Power consumption, Power loss	max. 12 W	max. 12 W
Power consumption, Power loss for the following mode: Analog output 10mA; background lighting Display off; Relay output “Alarm” on; Relay output pre-alarm off; Sensor: 2xPt100	5W	5W

Test voltages according to EN 60730, part 1

Input and output against voltage supply
– At voltage supply AC 110 to 240 V +10 % / -15 %	3.7 kV/50 Hz
– At voltage supply AC/DC 20 to 30 V, 48 to 63 Hz	3.7 kV/50 Hz

Electrical safety

	Clearances / creepage distances
Mains voltage to electronic components and probes	≥ 6 mm / ≥ 8 mm
Mains voltage to the relay	≥ 6 mm / ≥ 8 mm
Relay to electronic components and probes	≥ 6 mm / ≥ 8 mm
Electrical safety	According to DIN EN 14597 (DIN EN 60730-2-9) Overvoltage category III, pollution degree 2
Protection rating I	With internal separation to SELV electrical circuits

Environmental influences

Ambient temperature range	0 to +55 °C
Storage temperature range	-30 to +70 °C
Temperature influence	≤ ± 0.005 % / K dev. from 23 ×C1 for RTD temperature probe
	≤ ± 0.01 % / K dev. from 23 ×C1 for thermocouple, current
Terminal temperature Range	If the temperature range of -10 °C to +80 °C is exceeded or undercut, the device shows the error message “Terminal temperature Range“. The output changes to a safe state (quiescent current principle). The message can only be acknowledged, if the temperature is back again in the valid range.
Resistance to climatic conditions	85 % rel. humidity without condensation (3K3 with extended temperature range according to DIN EN 60721-3-3)
EMC	According to DIN EN 14597 and standards from the standard series DIN EN 61326
Interference emission	Class B
Interference immunity	Evaluation criteria FS according to DIN EN 14597, regulation and control devices (RS)

1. All specifications refer to the measuring range end value

Case

Material	Polycarbonate
Flammability class	UL 94 V0
Electrical connection	On the front via screw terminals up to 2.5 mm²
Installation	On 35 mm DIN rail acc. to EN 60715
Installation position	vertical
Weight	Approx. 230 g
Protection type	IP 20 acc. to EN 60529

Approvals/approval marks

Approval marks	Testing agency	Certificates/certification numbers	Inspection basis	Valid for
DIN	DIN CERTCO	STB/STW1223	DIN EN 14597	All device versions:
SIL2, SIL3	TÜV Nord (German Technical Inspection Agency)	SEBS-A.102606/16-2 V1.0	DIN EN 61508	Devices with extra code 058
PL e	TÜV Nord (German Technical Inspection Agency)	SEBS-A.102606/16-2 V1.0	DIN EN ISO 13849-1	Devices with extra code 058
c UL us	Underwriters Laboratories	E325456-20120611	UL 60730-2-9 submitted	All device versions:
DNV·GL	DNV·GL	TAA000017J		Devices with extra code 062
Pressure Equipment Directive	TÜV Süd (German Technical Inspection Agency)	07 202 1045 Z 0031/14/D0046	Pressure Equipment Directive 97/23/EG	All device versions:

Product Range

Product Range:
Code	Specifications	Price
701150-23	Safety Temperature limiter / monitor; Safety Temperature Limiter (O-function), 2 x Pt100 input, 110~240Vac, 4~20mA Output. 701150/8-02-0253-2001-23/005,058	$1,516.00
701150-25	Safety Temperature limiter / monitor; Safety Temperature Limiter (O-function), 2 x Pt100 input, 20~30Vac/dc, 4~20mA Output. 701150/8-02-0253-2001-25/005,058	$1,516.00
_00506252	USB Cable, A-connector to Mini-B connector, length 3m.	$42.00
_00548742	Software – Setup program STB/STW	$260.00

All prices are in NZ$, and GST exclusive and are subject to change without notice.

Intech Instruments Ltd are the New Zealand distributor for JUMO products. Please contact the JUMO distributor in your country if you require sales or service support for JUMO products.

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STB/STW Features

Brand: JUMO
Usually in stock

Product Range

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Intech Christchurch

Intech Auckland

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STB/STW – Safety Temperature Limiter and Safety Temperature Monitor (701150)

STB/STW Features

Brand: JUMO Usually in stock

Product Range

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Who we are

Intech Christchurch

Intech Auckland

Newsletter

Brand: JUMO
Usually in stock