With the push of a single button, the portable Jerome 631-X hydrogen sulfide analyzer displays low-level concentrations in just seconds. It offers an analysis range of 0.003 - 50 ppm for odor and corrosion control, safety, and leak detection in such industries as wastewater treatment,
oil and gas, pulp and paper, and farming. This simple-to-use instrument weighs only 7 pounds, utilizes an internal rechargeable battery pack or AC power, and is easily carried to suspected sources of hydrogen sulfide for detection and measurement. Locked in survey mode, the 631-X
automatically displays hydrogen sulfide concentrations as quickly as every 3 seconds.
The Jerome 631-X utilizes a patented gold film sensor. The sensor's selectivity to hydrogen sulfide eliminates interferences from sulfur dioxide, carbon dioxide, carbon monoxide, and water vapors. When the sample button is pressed, an internal pump draws air into the instrument. Any
hydrogen sulfide in the sample is adsorbed by the sensor which registers a proportional change in electrical resistance. The hydrogen sulfide concentration is displayed on the LCD, where it remains until the next sample is taken.
Additional accessories are available to customize the Jerome 631-X to meet individual application needs. For unattended sampling, the instrument can be programmed by a computer using the Jerome Communications Interface (JCI) software. A data logger plugs into the back of the instrument for data acquisition during portable surveys or unattended sampling without a computer. Recorded data can be downloaded later to the computer using the JCI software for analysis printout, permanent record keeping. An internal option board allows autozeroing, DC power operation, timed regeneration, and timed sampling during prolonged unattended sampling periods. The option board also allows external
fresh air solenoid support and 4-20 mA or 0-2 V analog output. Instrument calibration can be verified in the field using the Functional Test Module (FTM). A molded hard carrying case or soft field case give added versatility and organized storage for the instrument and its accessories.
| 631-X Features |
- Accurate analysis of hydrogen sulfide in seconds
- Rugged and easy to operate
- Rechargeable internal battery pack for portability
- Automatic backlight for LCD during low light conditions
- Microprocessor ensures a linear response throughout the entire range of the sensor
- Survey mode for rapid source detection of hydrogen sulfide concentrations
- Wide detection range allows multiple applications
- Pressure sensitive membrane switch operation
- Inherently stable gold film sensor
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| Optional Accessories |
- Data Logger to record field monitoring information
- JCI Software Kit for downloading information from the data logger to a PC or unattended, fixed-point sampling
- Option Board for external fresh air solenoid support, auto-zeroing, DC power operation, timed regeneration, 4-20 mA or 0-2 V analog output, and timed sampling
- FTM for sensor calibration verification in the field
- Hard or soft Field Carrying Cases for versatile handling and additional storage
- Maintenance Kit for routine maintenance and upkeep
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| Applications |
- Ambient Air Analysis
- Odor Nuisance Monitoring
- Regulatory Compliance
- Control Room Corrosion Monitoring
- Quality Control
- Scrubber Efficiency Testing
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- Accuracy Check for other Hydrogen Sulfide Monitors and Control Systems
- Hydrogen Sulfide Source Detection
- Leak Detection
- Applied Research Projects
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| Specifications |
| Resolution |
0.001 at Range 0 to 0.1 ppm at Range 3 |
| Detection Range |
0.003-50 ppm |
| Precision |
5% Relative Standard Deviation |
| Accuracy |
Range 0: ±0.003 ppm at 0.050 ppm
Range 1: ±0.03 ppm at 0.50 ppm
Range 2: ±0.3 ppm at 5.0 ppm
Range 3: ±2 ppm at 25 ppm
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| Response Time |
Sample Mode:
10-50 ppm in 13 s
1.0-10.0 ppm in 16 s
0.10-1.00 ppm in 25 s
0.001-0.100 ppm in 30 s
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Survey Mode:
10-50 ppm in 3 s
1.0-10.0 ppm in 6 s
0.10-1.00 ppm in 15 s
0.001-0.100 ppm in 20 s
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| Flow Rate |
150 cc/min or 0.15 l/min |
| Power Requirements |
100-120 V ~ 50/60 Hz, 1 A or 220-240 V ~ 50/60 Hz, 1 A |
| Internal Battery Pack |
Rechargeable nickel-cadmium |
| Environmental Range |
0-40 °C, noncondensing, nonexplosive |
| Interfaces |
RS-232 PC using JCI software |
| Dimensions |
6” W x 13” L x 4” H |
| Weight |
7 lb |
| Warranty |
One year, factory parts and labor |
| Certifications |
European Communities (CE) for 220-240 V~ model only |
24 Hour Customer Support • Rentals Available
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