Omega I0000815 Bullet Probe Instruction Manual
- September 13, 2024
- Omega
Table of Contents
I0000815 Bullet Probe
Specifications:
- Probe Material: Stainless Steel
- Probe Length: 1 inch (25.40 mm)
- Mounting Height: 48-60 inches (1.2-1.5 meters)
- Maximum Pipe Diameter for Mounting: 1 inch (25.4 mm)
Product Usage Instructions:
Mounting Instructions:
To mount the Bullet Probe (-BP) on a wall:
-
Check local code for mounting height requirements.
-
Mount the sensor in an area with well-mixed air circulation and
no obstructions. -
Fix the probe on the wall at a height of 48-60 inches (1.2-1.5
meters) off the ground and at least 1.5 feet (0.5 meters) from the
adjacent wall. -
Slide the sensor probe through the mounting clip as shown in
FIGURE 3. -
Drill a 1/4 inch screw through the socket and tighten it to the
wall.
Pipe Mounting:
To mount the Bullet Probe (-BP) sensor on a pipe:
-
Clean the pipe with an emery cloth or file for increased
thermal conduction. -
Apply thermal grease to the pipe before fastening the
probe. -
Use cable ties to secure the sensor probe and wires on the pipe
following FIGURE 4.
To mount the Pipe Mount (-PM) sensor on a small pipe:
-
Align the contoured PM sensor to the pipe with a maximum
diameter of 1 inch (25.4 mm). -
Fasten the sensor to the pipe using cable ties as shown in
FIGURE 5.
Wiring Instructions:
Connect thermistor/RTD wire leads to controller analog input
wires using wire nuts, terminal blocks, or crimp style connectors.
Ensure compliance with all local and National Electric Codes.
FAQ:
Q: Can the Bullet Probe be submerged in water?
A: No, the Bullet Probe should not be fully submerged in water
as it is designed for monitoring air temperatures.
Q: What is the recommended mounting height for the Bullet Probe
on a wall?
A: ACI recommends a height of 48-60 inches (1.2-1.5 meters) off
the ground and at least 1.5 feet (0.5 meters) from the adjacent
wall.
BULLET PROBE/ PIPE MOUNT
SERIES
Phone: 1-888-967-5224 Website: workaci.com
Installation & Operation Instructions
PRECAUTIONS · DO NOT RUN THE WIRING IN ANY CONDUIT WITH LINE VOLTAGE
(24/120/230 VAC).
GENERAL INFORMATION
The Bullet Probe features a one inch stainless steel probe that is designed
for use with electronic controllers in commercial heating and cooling building
management systems. It is available with multiple thermistor or RTD options.
The bullet style sensor monitors air temperatures and should not be fully
submerged in water.
FIGURE 1: BULLET PROBE (-BP) DIMENSIONS
0.25″ (6.35 mm)
1.00″ (25.40 mm)
For optimal temperature measurement, follow these tips: · Do not install on
external walls. · Avoid air registers, diffusers, vents, and windows. ·
Eliminate and seal all wall and conduit penetrations. Air
migration from wall cavities may alter temperature readings. · Do not install
near heat sources. eg: lamps, radiators, direct sunlight, copiers, chimney
walls, walls concealing hot-water pipes.
MOUNTING INSTRUCTIONS
Bullet Probe sensors may be mounted using a 1/4″ mounting clip (ACI Item
108169) on walls or with cable ties along pipes. ACI’s Pipe mount Series is
recommend for pipes from ½” (12.7mm) to 1″ (25.4mm). The Bullet Probe may still be used, but the Pipe Mount has small curvature on the bottom that is designed to increase the surface area and improve the thermal conductivity between the pipe and the sensor.
23.00″ (584.20 mm)
0.25″ (6.35 mm)
0.65″ (16.51 mm)
FIGURE 2: PIPE MOUNT (-PM) DIMENSIONS
1.10″ (27.94 mm)
BULLET PROBE (-BP) ASSEMBLY ON WALL Take care when mounting. Check local code for mounting height requirements. The sensor should be mounted in an area where air circulation is well mixed and not blocked by obstructions. To fix the BP on a wall, ACI recommends a height of 48-60″ (1.2-1.5 m) off the ground and at least 1.5′ (0.5 m) from the adjacent wall. Slide the sensor probe through the mounting clip – see FIGURE 3 (p. 2). Drill a 1/4″ screw through the socket and tighten to the wall.
TOP VIEW
0.38″ (9.53 mm)
2.00″ (50.80 mm)
0.31″ (7.87 mm)
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: 1-888-967-5224 | Website:
workaci.com
Page 1
Version: 3.0 I0000815
PIPE MOUNTING
For best accuracy and increased thermal conduction between the pipe and the
sensor, ACI recommends to clean the pipe with an emery cloth or file, before
applying thermal grease. Be sure to insulate the probe (from the effects of
the ambient air) after tightly fastening to the pipe.
BULLET PROBE (-BP) ASSEMBLY ON PIPE To fix the BP sensor along a pipe, use
cable ties to mount the sensor probe and wires on the pipe see Figure 4
(middle).
PIPE MOUNT (-PM) ASSEMBLY ON PIPE For mounting along a small pipe with maximum
1″ (25.4 mm) diameter, align the contoured PM sensor to the pipe and fasten
with cable ties – see FIGURE 5 (below).
FIGURE 3: BULLET PROBE
BULLET PROBE
1/4″ MOUNTING CLIP
FIGURE 4: BULLET PROBE (-BP) ASSEMBLY
BARE ASSEMBLY
INSULATION ADDED
BULLET PROBE CABLE TIE
PIPE
CABLE TIE BULLET PROBE
PIPE
FIGURE 5: PIPE MOUNT (-PM) ASSEMBLY
PIPE MOUNT SENSOR
CONTOURED SURFACE OF SENSOR FITTED TO PIPE
PIPE MOUNT SENSOR
CABLE TIES
INSULATION ADDED TO COVER BULLET PROBE
MAX 1″ (25.4 mm) DIAMETER PIPE
MAX 1″ (25.4 mm) DIAMETER PIPE
WIRING INSTRUCTIONS
ACI recommends 16 to 26 AWG twisted pair wires or shielded cables for all
sensors. Signal wiring must be run separate from low and high voltage wires
(24/120/230 VAC). All ACI thermistors and RTD temperature sensors are both
non-polarity and non-position sensitive. All thermistor type units are
supplied with (2) flying lead wires, and all RTD’s are supplied with (2) or
(3) flying lead wires see FIGURE 6 (right). The number of wires needed
depends on the application.
Connect thermistor/RTD wire leads to controller analog input wires using wire
nuts, terminal blocks, or crimp style connectors. All wiring must comply with
all local and National Electric Codes.
FIGURE 6: TEMPERATURE WIRING
2-WIRE THERMISTOR or RTD WIRING
WIRE NUT THERMISTOR OR
RTD 2 WIRE
WIRING FROM CONTROLLER ANALOG INPUT
3-WIRE RTD WIRING
SAME COLOR WIRES RTD 3 WIRE
WIRING FROM CONTROLLER ANALOG INPUT
WIRE NUT
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: 1-888-967-5224 | Website:
workaci.com
Page 2
Version: 3.0 I0000815
WIRING INSTRUCTIONS (Continued)
Note: When using a shielded cable, be sure to connect only (1) end of the
shield to ground at the controller. Connecting both ends of the shield to
ground may cause a ground loop. When removing the shield from the sensor end,
make sure to properly trim the shield to prevent any chance of shorting.
Note: If the controller requires a (2) wire input for a RTD, connect the (2)
common wires(same color) together. If the controller requires (3) wires, use
(3) individual wires.
TROUBLESHOOTING
PROBLEM Sensor reading is incorrect
Sensor reads infinity/very high resistance Sensor reads low resistance Erratic
readings
SOLUTION(S) · Verify sensor wiring to controller is not damaged and has
continuity. · Verify sensor or wires are not shorted together. · Verify
controller is setup for correct sensor curve. · Disconnect wires from sensor
terminal block, tighten terminal block
screws down, and take a resistance (ohm) reading with a multimeter. · Compare
the resistance reading to the Temperature Vs Resistance
Curves online: http://www.workaci.com/content/thermistor-curves-0 · Verify
proper mounting location to confirm no external factors are
affecting reading. · Sensor or wires are open. · Sensor or wires are shorted
together. · Condensation on PCB board · Bad wire connections.
WARRANTY
The ACI Bullet Probe Series temperature sensors are covered by ACI’s Five (5)
Year Limited Warranty, which is located in the front of ACI’S SENSORS &
TRANSMITTERS CATALOG or can be found on ACI’s website: www.workaci.com.
W.E.E.E. DIRECTIVE
At the end of their useful life the packaging and product should be disposed
of via a suitable recycling centre. Do not dispose of with household waste. Do
not burn.
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: 1-888-967-5224 | Website:
workaci.com
Page 3
Version: 3.0 I0000815
PRODUCT SPECIFICATIONS
SENSOR NON-SPECIFIC INFORMATION
Number Sensing Points:
One
Operating Humidity Range: 10 to 95% RH, non-condensing
Plate Material:
304 Stainless Steel
Wire Size
22 AWG (0.65 mm)
THERMISTOR
Operating Temperature Range: -40 to 150ºC (-40 to 302ºF)
Storage Temperature Range: -40 to 85ºC (-40 to 185ºF)
Sensor Output @ 25 °C (77 °F): A/1.8K: 1.8 K nominal (Red/Yellow)
A/CP (Type II): 10 K nominal (White/Green)
(Lead Wire Colors)
A/2252: 2.252 K nominal (White/Red)
A/CSI: 10 K nominal (Green/Yellow)
*Does not include CL2P
A/3K: 3 K nominal (White/Brown)
A/10KS: 10 K nominal (White/Blue)
A/5K: 5 K nominal (Red/Gray)
A/10K-E1: 10 K nominal (Orange/Gray)
A/AN (Type III): 10 K nominal (White/White) A/20K: 20 K nominal (Brown/Blue)
A/AN-BC: 5.238 K nominal (White/Yellow) A/100KS: 100 K nominal (Black/Yellow)
A/50K: 50K nominal (Brown/Yellow)
A/10K-E1 Series: +/- 0.3 °C (+/- 0.54 °F)
Accuracy @ 0-70 °C (32 – 158 °F): A/1.8K Series: +/- 0.5 °C @ 25 °C (77 °F)
and (+/-1.0 °C) (+/-1.8 °F)
All Else: +/- 0.2 °C (+/- 0.36 °F)
PLATINUM
Operating Temperature Range: -40 to 200 ºC (-40 to 392 ºF)
Storage Temperature Range: -40 to 85ºC (-40 to 185ºF)
Sensor Output @ 0 °C (32 °F): A/100: 100 nominal
A/1K: 1 K nominal
Accuracy @ 0 °C (32 °F):
+/- 0.06% Class A (Tolerance Formula: +/- °C = (0.15 °C + (0.002 * |t|))
where |t| is the absolute value of Temperature above or below 0 °C in °C)
@ -40 °C (-40 °F): +/- 0.23°C (+/- 0.414 °F) @ 200 °C 392 °F): +/- 0.55 °C (+/- 0.99 °F)
@ 0 °C (32 °F): +/- 0.15°C (+/- 0.27 °F)
NICKEL
Operating Temperature Range: -40 to 121 ºC (-40 to 250 ºF)
Storage Temperature Range: -40 to 85 ºC (-40 to 185 ºF)
Sensor Output @ 21.1 °C (70 °F): 1 K nominal (Red/Red)
Accuracy:
@ -40 °C (-40 °F): +/- 1.52 °C (+/- 2.73 °F)
@ 54.4 °C (130 °F): +/- 0.56 °C (+/- 1.00 °F)
@ 0 °C (32 °F): +/- 0.4 °C (+/- 0.72 °F)
@121 °C (250 °F): +/- 1.25 °C (+/- 2.25 °F)
@ 21.1 °C (70 °F): +/- 0.17 °C (+/- 0.34 °F)
BALCO
Operating Temperature Range: -40 to 121 ºC (-40 to 250 ºF)
Storage Temperature Range: -40 to 85 ºC (-40 to 185 ºF)
Sensor Output @ 21.1 °C (70 °F): 1 K nominal (Orange/Yellow)
Accuracy @ 21.1 °C (70 °F):
+/- 1%
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: 1-888-967-5224 | Website:
workaci.com
Page 4
Version: 3.0 I0000815
References
- Building Automation Sensors | Automation Components, Inc.
- Building Automation Sensors | Automation Components, Inc.
- Thermistor Curves | Automation Components, Inc.
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