Interscan Corporation - The Nomad Data Logger

The Products Section >The Nomad Data Logger

Model mV-HR

Nomad data logger The mV-HR is a small, two channel, high resolution (16-bit) voltage data logger, provided with an internal temperature sensor. The unit can accommodate inputs of

±50 mV
±100 mV
±200 mV
±400 mV

Models designed for other voltage ranges, 4-20 mA input, and self-contained loggers for a host of environmental parameters are also available. Please contact us for further details.

Supplied with easy to use yet feature-rich software, the loggers can be programmed to record in engineering units, and yield a number of useful reports. Logging files can be exported to spreadsheet programs, for further analysis.

SPECIFICATIONS

External connector

2 pin Switchcraft Plug EN3C2M

Weatherproof

IP66 rating

Pinout

1 Positive

2 Negative

View from front of socket or rear of plug

Maximum readable input voltage

500 mV

Maximum voltage input without damaging logger

10 V

Input leakage current

1 nA

Resolution

Input range

Resolution

±50mV

0.01 mV

±100mV

0.01 mV

±200mV

0.01 mV

±400mV

0.1 mV

Accuracy

±0.1% of full scale

If the logger is connected to a computer or instrument with either having an earth ground, erroneous readings will result, because of currents produced from the ground connection.

Temperature sensor

Thermistor

Linearity

±0.5°F (Over the range 32°F to 158°F)

[±0.3°C (Over the range 0°C to 70°C)]

Repeatability

±0.2°F [±0.1°C]

Long term stability

±0.2°F [±0.1°C]

Working and storage temperature

-22°C to +158°F [-30°C to +70°C]

Sampling rate

Adjustable in one second increments from 1 sample/second to 1 sample/10 hours

Storage capacity

Logging one channel

522,240 samples

145 hours with 1 sec logging interval

362 days with 1 min logging interval

4.9 years with 5 min logging interval

Logging two channels

261,120 samples

72.5 hours with 1 sec logging interval

181 days with 1 min logging interval

2.4 years with 5 min logging interval

Alarms

Two independent alarms

Triggered on any combination of six user configurable alarm conditions

Both alarms can be configured to send SMS messages

Alarms can be reset on user configurable reset conditions

Alarms can be visually checked using the software supplied

Start modes

Start immediately

Start on date/time

Start on condition (e.g. temperature > 20°C)

Start on trigger (push button on logger)

Stop modes

Stop when memory is full

Stop on date/time

Loop around (continues logging)

Logging modes

Each channel can be set to log any combination of:

Point readings
Average reading
Maximum reading
Minimum reading

Battery

User replaceable

Custom 7.2V Lithium battery pack

One to five years depending on usage

The data is retained in the case of battery failure

Battery status monitored in software

Download time

9 minutes 30 seconds at full capacity

Case material

Type 304 stainless steel tube

Screw on end cap

Plated brass

Weight

5.3 oz [149 g]

Size

0.79 in diameter x 7.28 L [20mm dia. x 185mm L]


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