Load, Damping, Low flow cutoff – Fluid Components International CMB User Manual

Page 34: Ct performance characteristics, Reference conditions, Measured error, Repeatability error, Influence of ambient temperature

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8.3 Load

Standard version:

≤ 500 ohms

Explosion-proof version:

≤ 500 ohms

HART

®

minimum load:

> 250 ohms

8.4 Damping

Programmable from 0 to 60 seconds

8.5

Low flow cutoff

The low flow cutoff can be set to values between 0 and 20% using the software. The set value refers to
the upper-range value. If the measured value is lower than the set volume, the flow rate will set to 0.0
(lb/m, kg/h). This results in the analog output being set to 0/4 mA, and the pulse output will stop generat-
ing pulses.

9. CT performance characteristics

9.1 Reference

conditions

In conformity with IEC 770
Temperature: 20 °C (68 °F), relative humidity: 65 %, air pressure: 101.3 kPa (14.7 psi)

9.2 Measured

error

Measured error and zero point stability see sensor data sheet or Section 3.4.2 CMB flow ranges on
page 15.

9.3 Repeatability

error

± 0.05 % of actual value (sensor with transmitter)

9.4

Influence of ambient temperature

± 0.05 % per 10 K


Page 34 of 106

CMB & CT OPERATING MANUAL

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