PRTXB Series
RTD Process Thermometers
M-4998/0818
MODEL
PROBE
LENGTH
PROBE
TYPE
PRTXB-2
2.5
"
Fixed
PRTXB-2-SL
2.5
"
Spring-Loaded
*
PRTXB-4
4
"
Fixed
PRTXB-4-SL
4
"
Spring-Loaded
*
PRTXB-6
6
"
Fixed
PRTXB-6-SL
6
"
Spring-Loaded
*
PRTXB-9
9
"
Fixed
PRTXB-9-SL
9
"
Spring-Loaded
*
PRTXB-12
12
"
Fixed
PRTXB-12-SL
12
"
Spring-Loaded
*
*Thermowell required for spring-loaded versions
Range and Resolution
User selectable °F, °C or K
–58.0°F to 392.0°F
–50.0°C to 200.0°C
220.0K to 475.0K
0.1 degree resolution
Typical Accuracy
Includes linearity error and ±1 LSD
11-point linearization
±0.7°C at –50°C
±0.4°C at 0°C
±0.9°C at 100°C
±1.4°C at 200°C
Display
4 readings per second nominal display update rate
4 digit LCD, 0.5" H, 5 character 0.25" H alphanumeric
BL models: red LED backlight
Sensor
IEC-751 Class B 100
Ω
Platinum RTD, 0.00385 alpha curve
1
/
2
" NPT male, 316 stainless steel
Spring-loaded probe versions fit standard thermowells
Fixed probe pressure rating: 5000 psi max.
Fixed probes are welded to hex fitting
Auto Shutoff Time
Factory default 5 minutes. User settable to 1, 2, 5, 10, 15, 20,
30 minutes, 1, 2, 4, 8 hours, or manual on/off.
OFF warning before auto shutoff to allow reset of timer
Batteries, Battery Life, Low Battery Indication
B: 2 AA alkaline, approx. 1000 hours
BL: 2 AA alkaline, approx. 150 to 750 hours depending on
backlight usage.
BL: Button press activates backlighting for 1 minute
Low battery symbol on display
Controls and Functions
Three front buttons for power on/off, min/max functions,
selection of °F, °C, or K, auto shutoff times, calibration and,
configuration options
User-defined pass codes for configuration and calibration to
prevent unauthorized changes
Maximum and Minimum Readings
User-configurable maximum and/or minimum temperature
indication. Factory default configuration MAX/MIN disabled.
Choice of MAX only, MIN only, MAX/MIN, or none
Option to retain or clear MAX/MIN temperatures at shutoff
Out-of-Range
ALARM1 under range indication on display
ALARM2 over range indication on display
Calibration
User settable pass code required to enter calibration mode
Zero and span temperature calibration
Non-interactive zero, span, and linearity, ±10% of range
Weight
Product:
12 ounces (approximately)
Shipping:
1 pound (approximately)
Housing
ABS/polycarbonate NEMA 4X case, polycarbonate label, rubber
rear gasket
Connection, Material, Media Compatibility
1/2" NPT male fitting, 316L stainless steel
All wetted parts are 316L stainless steel
Thermowell required for spring-loaded versions
Storage Temperature
–40 to 203°F (–40 to 95°C)
Operating Range
–4 to 185°F (–20 to 85°C) at housing
2.0"
Hex nipple
1/2" NPT x 1/2" NPT
316 stainless
Spring-loaded models
approx. 0.25" longer
to compress element
in thermowell.
0.50" max.
compression
1.25"
3.5"
0.75"
0.25" dia.
Stem
Length
L
Continuous weld
on non-spring
loaded models
1.37"
3.0"
X X X X X
88888
ALARM 2
ALARM 1
t
s
Measured from
top of full threads
to tip of probe.
Length L =
thermowell “A” or
“element length”
Turn at
hex
fitting
only!
Low battery
indication
e-mail: [email protected]
For latest product manuals:
www.omegamanual.info
Shop online at
omega.com
User’s Guide
WARNING:
This product can expose you to chemicals including
lead, nickel and chromium, which are known to the State of
California to cause cancer or birth defects or other reproductive
harm. For more information go to www.P65Warnings.ca.gov
TM
