model 2704 controller installation and operation handbook - Soliton

Technical Specification
2704 Controller
C. Appendix C Technical Specification
All figures quoted at 0 to 50 o C unless otherwise stated.
C.1.
Sample rate
Input filtering
User calibration
Sensor break
Thermocouple
types
General
ALL ANALOGUE, DUAL AND PV INPUTS
9Hz (110msec.)
OFF to 999.9 seconds of filter time constant (f.t.c.). Default setting is
0.4 seconds unless stated otherwise
Both the user calibration and a transducer scaling can be applied.
a.c. sensor break on each input (i.e. fast responding and no dc errors
with high impedance sources).
Most linearisations including K,J,T,R,B,S,N,L,PII,C,D,E with
linearisation error < ±0.2°C
Resolution (noise free) is quoted as a typical figure with f.t.c. set to the
default value = 0.4 second.
Resolution generally improves by a factor of two with every
quadrupling of f.t.c.
Calibration is quoted as offset error + percentage error of absolute
reading at ambient temperature of 25 O C
Drift is quoted as extra offset and absolute reading errors per degree of
ambient change from 25 O C.
C-2 Installation and Operation Handbook. Part No HA026502 Issue 2.0 Apr-00