Cutout; Proportional Band - Fluid Table - Fluke 7011 User Manual

7011 Calibration Bath
User's Guide
9.8
42
Table 3 Proportional Band — Fluid Table
Fluid Temperature
Water 30.0°C
Water 60.0°C
Eth-Gly 50% 35.0°C
Eth-Gly 50% 60.0°C
Eth-Gly 50% 100.0°C
Oil 35.0°C
Oil 60.0°C
Oil 100°C
12 Pct
Heater power in percent
S
Access proportional band
Pb=0.101C
Proportional band setting
To change the proportional band press "UP" or "DOWN".
Pb=0.060C
New proportional band setting
To accept the new setting and access the cutout set-point press "SET". Pressing
"EXIT" will exit the secondary menu ignoring any changes just made to the
proportional band value.
S
Accept the new proportional band setting

Cutout

As a protection against software or hardware fault, shorted heater triac, or user
error, the bath is equipped with an adjustable heater cutout device that will shut
off power to the heater if the bath temperature exceeds a set value. This protects
the heater and bath materials from excessive temperatures and, most impor-
tantly, protects the bath fluids from being heated beyond the safe operating
temperature preventing hazardous vaporization, breakdown, or ignition of the
liquid. The cutout temperature is programmable by the operator from the front
Proportional
Heater Setting Band
Low 0.04°C
Low 0.04°C
Low 0.05°C
Low 0.05°C
High 0.4°C
Low 0.1°C
Low 0.2°C
Low 0.2°C
Stability
±0.0004°C
±0.001°C
±0.0005°C
±0.001°C
±0.007°C
±0.003°C
±0.002°C
±0.003°C