Home > NH3 Module Kit > NH3CAN
ECM’s NH3CAN Module is a CAN output device for the measurement of NH3 in the exhaust of diesel and other lean burn engines. This makes the module useful for SCR system development or to compensate NOx sensors for their NH3 cross-sensitivity. NH3CAN uses a ceramic sensor that is mounted in the exhaust of the engine and communicates NH3 via its CAN port.

Although designed as a measurement tool, the NH3CAN can be easily integrated into an engine or aftertreatment control strategy. The CAN node identification can be programmed by the user allowing multiple NH3 modules on the same bus. NH3 sensors used with the module have memory chips in their connector where calibration information is stored. This allows the sensors to be recalibrated (zero, span) in a central location and distributed to users, ensuring consistent results throughout a large test facility. PC software to set-up, control, calibrate, and view outputs and sensor parameters is included (requires CAN adapter, available). An optional pressure measurement kit is available. Three optional displays, two with programmable analog outputs, are available. These displays can be used with one or two modules.
Inputs:1 Ceramic NH3 Sensor, 1 Pressure Sensor (optional)
Ranges:NH3 0 to 2000 ppm (for λ > 1 only)
Pressure (optional) 0 to 517 kPa (0 to 75 psia)
Accuracies:NH3 ± 5 ppm (0 to 200 ppm)
Pressure (optional) ± 5.2 kPa (± 0.75 psia)
Response Time:Less than 1 s.
CAN:High Speed according to ISO 11898
Configuration:Via CAN Bus with Configuration Software. Programmable Node ID.
Module:145mm x 120mm x 40mm, Environmentally Sealed
Electronics -55 to +125°C, IP67

450°C (maximum gas temperature for use)
700°C (maximum gas temperature without possibility of sensor damage)
Sensor Cable:0.5m (sensors), +1m (standard), +2m (optional)
Power:11 to 28 VDC, AC/DC (optional)
Sensor Mounting:18mm x 1.5mm thread
Jump to Optional Kits and Parts
Related Downloads:
NH3CAN Brochure (2020-04-24, 288KB)
Aluminum Block Brochure (27KB)
Exhaust Probe Brochure (104KB)
Vboost Power Supply Brochure (165KB)
ETAS INCA Setup Guide (1052KB)
ATI VISION Setup Guide (504KB)
ECM CAN Configuration Tool (v4.48.10, 31499KB)
Firmware Update Procedure for Modules (225KB)
Ordering Information, Complete Kit P/N: NH3CAN
The complete kit includes the following parts:
1.NH3CAN Module02-121
2.NH3 Sensor06-071
3.Lambda/NOx/NH3 Cable, 1m10-021
4.Flexi-Eurofast Cable, 0.3m09-041
5.Eurofast "T" Connector09-051
6.Eurofast Termination Resistor09-061
7.Eurofast 12mm Cable, 2m09-021
8.DC Power Cable, DB9F, Banana Plugs11-021
9.18mm x 1.5mm Mild Steel Boss and Stainless Steel Plug12-021
10.5200 Series Manuals & Configuration Software CD
This PC-based software allows configuration of CAN communication, calibration of sensors, and data logging. Requires Kvaser, Vector, or Peak USB-to-CAN adapter. (Available from ECM, see P/N 13-02 below)

Optional Kits and Parts:

For pressure measurement, these additional items are included:
1a.Pressure, Type KP, 0-75 psia, 1/4" NPT (USA), or07-051
1b.Pressure, Type KP, 0-517 kPa, 6mm (Metric)07-061
2.Module Y Cable10-211
3.Pressure Cable (4-terminal), 1m10-041
4a.Pressure Line Assembly, 1/4" NPT Tubing/Hose/Fittings, 28" Length (USA), or12-081
4b.Pressure Line Assembly, 6mm Tubing/Hose/Fittings, 711mm Length (Metric)12-111

1.CAN-to-USB Adapter13-021
2.AC/DC Power Supply w/ CAN Tap, Universal, 24VDC 4.2A
(Requires P/N 11-17 for use with CAN-to-USB adapter)
3.Deutsch DTM3M to DB9F11-171
4.DC Power Cable, DB9F, Spades11-011
5.DC Power Cable, DB9F, Banana Plugs, 1m11-361
6.Vboost Power Supply (Boosts supply voltage to avoid dropout situations)04-021
7.AC/DC Power Supply, 120VAC In, 15VDC 15A Out, 4.5" x 6" 10", 13lbm
(Up to 4 Modules and 2 Display Heads)
8.AC/DC Power Supply, 120VAC In, 24VDC 15A Out, 7.5" x 7.0" x 2.5", 4lbm
(Up to 8 Modules and 4 Display Heads)
9.AC/DC Power Supply, 120VAC In, 15VDC 60A Out, 6.75" x 10.5" x 11.5", 33lbm
(Up to 16 Modules and 8 Display Heads)
10.Eurofast 12mm Cable, 10m09-03/101
11.Lambda/NOx/NH3 Cable, 2m10-031
12.Lambda/NOx/NH3 Cable, 3m10-371
13.Pressure Cable (4-terminal), 2m10-051
14.Pressure Cable (4-terminal), 3m10-401
15.Eurofast Hub Block, 8-channel09-081
16.Termination Resistor for Hub Block09-091
17.2m Hub Power/Eurofast Harness11-101
18.1/4" UNC Module Stacking Standoff
(Use to mount and stack ECM CAN modules. One kit mounts/stacks two
modules. Each additional kit mounts/stacks an additional module.)
22.Aluminum Mounting Plate for 8-Ch Block and Modules (16" x 10" x 0.16")12-421
23.19" Rackmount Panel (holds up to 4 display heads or 4 dashCANs)12-011
24.18mm x 1.5mm Mild Steel Boss and Stainless Steel Plug12-021
25.1/4" NPT Mild Steel Boss and Brass Plug (USA)12-051
26.1/4" ISO Mild Steel Boss and Brass Plug (Metric)12-121
27.Aluminum Remote Sensor Mounting Block (18mm x 1.5mm, 5 x 1/4" NPT)12-181
28.Individual Cylinder Exhaust Probe (18mm Tall x 1.5mm) (USA)12-511
29.Individual Cylinder Exhaust Probe (18mm Tall x 1.5mm) (Metric)12-521