Yokogawa 202 Field Mounting Rate Totalizer User Manual

Page 11

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Specification

7

DC Power/Alarm Version

Outputs:

Two open collector outputs suitable for driving
DC solenoids or external relays. The outputs can
be programmed to provide high and low flow
alarms or pulse output and low flow alarm.

Switching Power:

200mA. 30VDC maximum.

DC Power Input:

9-28 Volt at 4mA maximum.

Supply Backup:

Lithium battery.

Pulse Duration:

1ms if CAL0 = 2 (unscaled pulse output).
If CAL0 = 1 (scaled pulse output) the duration of
the pulse automatically adjusts to the output
frequency:
a. 1ms if output > 50Hz.
b. 10ms if output = 5...50Hz.
c. 100ms if output < 5Hz.

Physical

Temperature:

Operating temperature: -20

°

C to 60

°

C.

Dimensions:

97mm (3.8") high x 150mm (5.9") wide x 41mm
(1.6") deep (cable glands not included).

Protection:

Sealed to Nema 4X or IP67 standards.

Cable Entry:

By cable glands.

Wall Mounting:

Universal mounting bracket supplied as standard.

Pipe Mounting:

A galvanised metal bracket is available which
enables the Model 202D to be attached to a 2"
vertical or horizontal pipe.

Turbine Meter Adaptor:

An optional mounting stem is available for
mounting the Model 202D directly on turbine
flowmeters which have a 1" NPT boss or 1" BSP
boss.

Panel Mounting:

Supplied with mounting brackets. Terminals
accessible from rear. The panel mount version is
not watertight.

Cutout:

141mm (5.6") wide x 87mm (3.4" high).

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