Manual

4838 Reactor Controller
Parr Instrument Company
20
HTM / ETLM Module
Press return key and release
Operation
Mode
Select
type/value
Comment
r-S Run Run/Stop
SP 0** Decimal point position
AL1H 375*** Upper-limit alarm 1
LoC OFF Lock mode (lock all keys or
only up/down arrow able
to use)
Out1 - (read-only) Heater Output %
** If using a type-J or type-K thermocouple, SP = 0
If using an RTD, SP = 1
*** If using an HTM, AL1H = 0
If using an ETLM, AL1H = 375
Press and hold down “SET” for 5-sec
Operation
Mode
Select
type/value
Comment
InPt J** Input type
tPUn C Temperature unit
tP-H 800** Upper-limit temperature
range
tP-L 0 Lower-limit temperature
range
CTRL ON/OFF Control mode (ON/OFF,
MANUAL, PID and PID
PROG)
S-HC Heat Heat/Cool control
ALA1 6*** Alarm operates when PV
value is higher than AL1H
value
SALA OFF System alarm
CoSH ON Communication write
function that able to use
set point from software
C-Sl RTU Format type
C-no 4 Communication address
bPS 9600 Communication baud rate
LEn 8 Data length setting
PrtY Even Parity bit setting
StoP 1 Stop bit setting
** If using a type-J thermocouple, InPt = J, tP-H = 800
If using a type-K thermocouple, InPt = K, tP-H = 800
If using an RTD, InPt = Pt, tP-H = 600
*** If using an HTM, ALA1 = 2
If using an ETLM, ALA1 = 6
Press “SET” and release
Operation
Mode
Select
type/value
Comment
HtS 0 Heating hysteresis setting
tPoF 0 Inaccuracy adjustment