The GP-MC is a high resolution (12 bit) multi purpose data logger with eight analogue and two digital pulse inputs. It also provides a Start on Trigger input and two alarm outputs. The GP-MC can be supplied in an optional IP66 Weatherproof enclosure if required. It can be configured to accept input from a wide variety of sources including:
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The GP-MC also has an internal temperature sensor for convenient logging of ambient temperature if desired.
One to Five year battery life depending on usage as below, user replaceable. Data is retained in the event of battery failure. Battery Status Monitor in Omni7 Software.
- Warning: When using the Average, Maximum or Minimum reading(s), the logger reads the attached sensor(s) every second. This will reduce battery life.
- Using the logger in temperatures below -5°C (23°F) will reduce battery life.
Download cable (2m) for GP-MC = DLC5USB [USB]
Note: GP-MC inputs are individually configurable using Omni7. Each input requires conditioning using a ‘Probe Set’ – see example picture below:
External Power Input:
The GP-MC has an internal battery which powers the logger and probes. However, it can also be powered by an external 5V to 15V DC Plug Pack or Battery. The main reasons for using the External power input are:
- When large current draw from probes would flatten the Internal battery; and
- At very low temperature (< 10ºC) where the Internal battery voltage can drop.
- External power can also be used to run the logger while the internal battery is changed.
The Internal battery runs the logger if the External power fails. There is an External Power Status Monitor in Omni7 software.
Please note that Intech Instruments’ recommends the internal battery be left in place in case the external power supply fails. The internal battery will keep the logger going should this happen. More information below:
If the logger is run with no internal battery and the external supply fails the logger will turn off. When the external power supply is turned back on, the logger will reboot and will be in “Stopped” mode. The logger will need to be configured in “start on condition” mode and “loop” mode and the “Start Logger” button clicked to initialise the next recording cycle.
It is recommended that the internal battery is left in. No power is drawn from the internal battery unless the external supply fails and the internal battery will keep the logger running during the down time. The logger will stay on standby and start on condition even if the external supply is still down.
Pressure Probe
The sensors are suitable for the measurement of liquid or gas pressure including difficult media such as contaminated water and mildly corrosive liquids or gasses. There are two pressure ranges available:
- -15 to 100psi
- -15 to 300psi
These are gage sensors so the back of the sensor is ported to the atmosphere. They should not be used if the back of the sensor will be under pressure or will experience high humidity.
| Temperature Coefficient | ±3% from 0ºC to 55ºC |
| Long term stability | ±0.25% per year |
| Thread | 1/8 inch NPT |
| Material | 17-4 PH Stainless Steel |
| Working Temperature | 20 to +85°C |
| Cable Length | 1500mm |
The sensors for the GP-MC plug into an amplifier cable that connects to the loggers. The cable on the sensor is 500mm long. The cable from the amplifier to the logger is 1000mm so the combined length of cable is 1500mm.
On the GP-MC the amplifier and sensor should not be swapped between loggers without recalibration.
