The 423 Series Instruments are a Microprocessor-Based Digital Process Indicator for thermocouples and RTD's. The instrument
has no potentiometers for calibration. All calibration is done from the
front panel and stored in non-volatile memory. The program menu has
been secured at the factory by the use of a password which prevents
unauthorized users from entering the calibration mode.
Thermocouple and RTD inputs can be changed through the
pushbuttons as well. Calibration for these are also prompted through
pushbutton commands. Again, there are no potentiometers for calibration. Fahrenheit and Celsius and decimal point conversions are made
through menu commands.
Menu program lockout is available through pushbutton commands. This lockout is a specified codeword which prevents personnel
from entering the menu if desired. There is a universal codeword which
will over-ride any user specified codeword. This is maintained in case
the user loses or forgets the specified codeword.
2-2LIMITED WARRANTY
THE MODEL 423 SERIES DIGITAL INDICATOR SOLD BY OR PURCHASED FROM PYROMATION, INC. OR
FROM AN AUTHORIZED PYROMATION DISTRIBUTOR, OR AGENT IS SUBJECT TO THE FOLLOWING
LIMITED WARRANTY.
This product is warranted to be free from functional defects in materials and workmanship at the time the product
leaves the Pyromation, Inc. factory, and to conform at that same time to the specifications set forth in the relevant
Pyromation, Inc. installation, wiring, operation manual for this product for a period of one year after shipment from the
Pyromation, Inc. factory.
Pyromation's exclusive and sole obligation, and Buyer's exclusive and sole remedy under the above Limited Warranty
is limited to either repair or replacement of such product, at Pyromation's option, free of charge to Buyer. Pyromation
shall have no obligation to repair or replace unless the claimed defect in material or workmanship is reported in writing
to Pyromation at 5211 Industrial Road, Fort Wayne, Indiana 46825 within ten (10) days after delivery to the Buyer from
Pyromation or an authorized Pyromation distributor, representative or reseller. If so requested by Pyromation, the
product shall be returned to a designated facility during normal business hours, transportation prepaid.
Any action for breach of this warranty or other action arising out of this contract must be commenced within one year
after delivery.
Pyromation shall not be liable for any warranty, express or implied, other than the warranty stated above, and in the
event of a breach of the above stated warranty, Pyromation shall not be liable for any incidental, consequential, special,
or other damages, costs, or expenses other than repair or replacement as described above. Pyromation excludes
any and all warranties of merchantability or fitness for a particular purpose. The above stated warranty extends only
to the original Buyer from Pyromation, Inc. or from an authorized Pyromation distributor or agent, and may not be
transferred or assigned.
Page 2
3-1SPECIFICATIONS
- STANDARD -
Power Supply:
DC Isolation:
Ambient Temperature:
Overall Accuracy:
Input Impedance:
RTD Excitation Current:
Error Due to Lead Resistance:
Conversion Rate:
Filtering:
Resolution:
120 or 240VAC +10%/-15%
50/60HZ
External Fuse Required - .5A
@ 500 VP
32 to 122°F (0 - 50°C)
RTD or Thermocouple: + 1°F
4 - 20 mA: + .1%
47M Ohm (Millivolt inputs only)
.25mA
0.1uV per Ohm (T/C Inputs Only)
2.5 per Second
Digital: Average of 16 conversions per update
Analog: 2.2K in parallel with 0.1uf
.1 or 1 Degree
(Automatic 1 Deg., Resolution above 999.9)
Display:
Display Readouts:
Physical Dimensions:
Power Supply:
Auxillary Power Supply:
Relays:
.54" High LED, High Intensity Alpha Numeric
UNDR - Underrange
OVER - Overrange
OPEN - Open Input
48 x 96 x 148mm (overall dimensions)
(1.89" x 3.78" x 5.83")
- OPTIONS -
12 or 24 VDC +20/-10%
External Fuse Required - .5A
24 VDC (30 mA Maximum)
250 VAC (8A Maximum)
30 VDC (8A maximum)
Page 3
4-1ORDER CODE
Example Order Number:
-- - -
4231 142 R104S (0-5000)
METER STYLE
ORDER
CODE
1
DESCRIPTION
Input Selectable for T/C or RTD's
with Fixed Range or 4 - 20 mADC
with Scaleable Display
Table 6Table 1
ORDER
CODE
S
* Insert actual scaling desired as per examples below
Table 5Table 2
DISPLAY SCALING
Factory Scaled 4-20 mA Inputs Only
0 - 5000, 50 - 150, -100 to 100, 500-0
POWER SUPPLYOPTIONS
ORDER
CODE
1
2
3
4
Table 3Table 4
ORDER
CODE
00
85
42
4J
4K
4T
4E
4N
* Meters are shipped calibrated for Type K
thermocouples, degrees F, and 1° resolution