The Model 900S/RS232 is a Microprocessor based
controller/timer. It monitors temperature utilizing a Type J thermocouple sensor
and controls bath temperature with a standard three mode (PID) control scheme, with anti-reset windup.
Numerous status and alarm functions are incorporated to monitor various system
parameters. Additionally, a down-count/up-count programmable timer, with
cumulative over timer and pre-warn is integrated into the system. Two solid
state relay drive outputs are included for the Chiller and Heater. A relay
output is provided for the Acid Pump and Timer. An RS232 link is also provided.
For information on the RS232 interface, see the Communications Supplement in the
manual.
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USES
TYPE J THERMOCOUPLES
-
THERMOCOUPLE
COLD JUNCTION COMPENSATION
-
LIQUID
LEVEL SENSOR INTERLOCK
-
HI
LIMIT CIRCUITRY INDEPENDENT OF MICROPROCESSOR
-
BI-DIRECTIONAL
TIMER
-
ACCESS
CODE PARAMETER PROTECTION
-
EEPROM
PARAMETER MEMORY
-
AUDIO
ALARM/ANNUNCIATOR
-
ALL
PARAMETERS SET IN SOFTWARE‑NO POTS OR SWITCHES
-
WET
STATION ENCLOSURE
-
BRIGHT
FOUR DIGIT LED DISPLAY (2)
-
SMOOTH
FACE CONSTRUCTION
|
RANGE
(Temperature)
|
0.0 - 199.9 Degrees C
|
|
RESOLUTION
(Temperature)
|
0.1 Degrees C
|
|
NOISE REJECTION |
NMR - 60 db @ 60 HZ
CMR -120 db @ 60 HZ |
|
RANGE (Time) |
0:00 - 99:59 Min:Sec
|
|
RESOLUTION (Time) |
1 Sec
|
|
MEASURING TIME |
4 Conversions/Sec |
|
DISPLAY |
Eight, 0.56 Inch High, Seven Segment, LED
Uniplanar numerals. Twelve Discrete LEDs (Red, Green, Amber)
|
|
ANNUNCIATOR |
Audio Tone, ~ 3200 HZ |
|
SETUP MEMORY |
EEPROM, All Parameters
|
|
MEMORY RETENTION |
10 Years w/o Power
|
|
SENSOR |
Standard - Type J Thermocouple, Cold Junction
Compensation, Up Scale Break Protection
|
|
CONTROL |
PID with Anti-Reset Windup
|
|
ADJUSTMENT |
Cycle Rate: 0 - 19 Sec
Proportional Band: .1 - 19.9 Deg. C
Reset (Integral): .1 - 19.9 Sec
Rate (Derivative): .1 - 19.9 Sec
Calibration Offset: + 9.9 Deg. C
|
|
OPERATING RANGE |
0 to 50 Degrees C
|
|
STORAGE RANGE |
-40 to
60 Degrees C
|
|
CONSTRUCTION |
Enclosure - Kydex
Face - Lexan, Back Printed
|
|
SIZE |
8.25 x 6 x 5.25 inches (HxWxD)
210 x 152 x 133mm
|
|
WEIGHT |
< 4 Lbs. (1.8 kg)
|
|
CONNECTION |
Rear, Screw-Type, 3/8 Inch Centers; T/C Miniature, Type J, Jack
|
|
OUTPUT |
Relay: 1 HP, 250 VAC
SSR Drives: 20ma, 12 VDC (provided)
|
|
POWER |
11 VA, 24
VAC ±10%, 50/60 HZ
|
|
MODEL |
VOLTAGE |
HEATER
CONTROL |
WITH RS232 |
| 900SA/RS232 |
24
VAC |
Pilot
Duty |
Yes |
| 900SB/RS232 |
120
VAC |
Pilot
Duty |
Yes |
|
