Sierra Not available instruction manual Appendix a, General

Series 900 Single & Dual Instruction Manual

GENERAL

System Electronics Powers/Reads up to two transducers. Flow, Setpoint, High Alarm, and Low Alarm directly displayed in engineering units. (Linear models). Outputs 0-5 volts and 4-20 mA for each channel. Valve control functions of Close/Purge/Monitor. Built-in 10 turn precision setpoint poten- tiometers. Totalizers (optional) mass flow.

INPUT POWER

115 VAC ± 10%

230 VAC ± 10% (optional)

OUTPUT POWER +15 VDC @ 1.25 A –15 VDC @ .90 A

OUTPUT HUM AND NOISE

Less than .05 Volts RMS

AMBIENT TEMPERATURE RANGE

At full rated power: 0-45° C.

At half rated power: 0-60° C.

RELATIVE HUMIDITY 0-50%non-condensing

DISPLAY

31⁄2 digit LCD in engineering units or 0-100% analog.

CONTROLS

Power ON/OFF. Channel Select (two channel configurations). Total mass flow reset (with totalizer only). One or two precision 10 turn Setpoint pots as required (for controllers only).

INPUTS

0-5 VDC and 4-20 mA for each channel (jumper selected on PCB).

OUTPUTS

0-5 VDC and 4-20 mA for each channel. 0-5 VDC is referred to common.

4-20 mA is referred to +15 VDC.

ALARMS (Optional)

Low Alarm and High Alarm open collector output for each channel. Able to sink 100 mA to common. Stand-off voltage 30 VDC. Independently set by internal pushbuttons/pots. Uses front panel display to show alarm points.

TOTALIZER

Totalizer has 6-digit capacity.

DIMENSIONS

3"H x 9"W x 11"D (without rack mounting ears)

WEIGHT

7 pounds

APPENDIX A

Specifications

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