The V108 is a compact, 4 digit indicator (with alarms) that fits 1/8 DIN cutouts. It accepts temperature inputs from J, K, T, L, N, R, S, B, C and Platinel II type thermocouples and three-wire Platinum 100 Ohm (Pt100) RTDs. Process variables such as 4-20mA or ranges within -9.99 to 80mV can also be measured. Other thermocouple types such as D and E and custom curves can be configured at the factory. Voltage ranges from 0 to 10V can be measured with the optional (model SUB2-1V1) adapter.

Three programmable setpoint alarms can be field configured as rate of change, high or low; non-latching, latching or new. The new alarm indicates when a latched alarm has not been acknowledged

and the measured value crosses the setpoint trip level a second time. Alarm hysteresis (deadband) can be configured from 1 to 9999 process variable units. Each alarm has a programmable delay

up to 999.9 seconds. The alarms can be linked to either of two relay outputs. Alarms can be configured in combination (e.g. one or all three alarms linked to one or both relays) and will operate in fail-safe (e.g., normally energized) or non fail-safe modes. Additionally, the unit can be configured for password protection, limiting operator access to any or all functions. An alarm blocking function is also configurable to prevent alarm tripping during process or start-up. The unit also accepts wiring for remote alarm acknowledgment.

Thermocouples, three-wire RTDs and mV inputs can be accepted directly into the indicator. Current signals such as 4-20mA are input using a 2.49 Ohm shunt resistor, included with the indicator

and mounting hardware. Other shunt resistor values can be used to measure higher current levels, provided the produced signal is within the -9.99mV to 80mV input range. Similarly, voltage inputs such as 0-10V can be measured using the optional attenuator (model SUB2-1V1). The input can be scaled as desired for display. Offset and two point slope adjustments are fully programmable.

Display:

4 digit (-999 to 9999) with programmable

decimal, green or red, 15.9mm (0.6 In.)

high characters

Inputs:

See Table 1

Output:

Relay (isolated): 2A, 264VAC resistive.

Minimum 12Vdc, 100mA.

Accuracy:

+/-1°C or +/-0.25% of reading, whichever

is greater

Cold Junction Compensation:

>30:1 rejection of ambient temperature

change. Uses Instant Accuracy cold

junction sensing technology to

eliminate warm-up drift and respond

rapidly to ambient temperature changes.

Input Filtering:

Off to 999.9 seconds