Specpoint Systems, LLC manufactures proprietary new instrument systems and replacement parts for Honeywell UVH series ammonia detectors.
SpecPoint UVH20 A-E Series

The Specpoint UVH20 series provides the industry's most reliable and accurate high performance U.V. sensing technology with exclusive 100% passive sampling and the ability to monitor up to 8 separate zones with each detector. The UVH20 offers closed or open process sampling with no electrochemical sensor cell to replace.
Specifications*
- Accuracy +/- .50% of range
- Repeatability +/- .10% of range
- Display type analog meter (digital optional)
- PV out: 4-20 ma or 1-5 vdc
- One alarm trouble relay S.P.S.T. 5 amps / 120 vac
- One alarm relay 3.P.D.T. 5 amps / 120 vac
- Power requirement: 120 volt AC 60HZ 10 VA
- Sample flow requirement: 5-25 SCFH
- Dimensions: 8"l x 8"w x 36"h
- Electrical Enclosure: NEMA 12
- UL CSA (Pending)
- Optional Feature: Multi-point sample sequencer (up to 8 zones)
Ammonia Measurement Ranges by Series:
- 0-50 PPM NH3
- 0-100 PPM NH3
- 0-250 PPM NH3
- 0-500 PPM NH3
- 0-2500 PPM< NH3
New Option: E-1000 Ethylene Detection (C2H4)
- Detect 0-1000 ppm C2H4 with UVH20 A-C models
- Signal Output 0-20ma for computer system
Still running an older Honeywell UVH10? Upgrade today. Trade-ins are welcome.
*Manufacturer reserves the right to change specs without notice
UVH20 Data SheetApplications
- Cold Storage ammonia detection
- Controlled Atmosphere (CA) warehouse ammonia detection
- Mechanical room ammonia detection
- Process monitoring of ammonia
- Specialized industry solutions
- Detection of other gases (Contact us for details)
- Hydraulic oil vapor detection
- Freon and HCFC/HFC/refrigeration vapor detection

Typical Install for UVH 20 A (0-50 ppm) CA Room Application

Typical Install for UVH 20 C (0-200 ppm) Compressor Room Application

Wiring Diagram