Sensistor ISH2000 Hydrogen Leak Detector Technical Reference Manual – INFICON

Description

Sensistor ISH2000 Hydrogen Leak Detector Technical Reference Manual

This Sensistor ISH2000 Technical Reference Manual from INFICON is the complete service, calibration, and operation guide for the Sensistor ISH2000 hydrogen leak detector family. It covers the desktop Sensistor ISH2000, the battery-operated Sensistor ISH2000C, and the panel-mount Sensistor ISH2000P in a single document. Whether you are commissioning a new unit, calibrating against a reference leak, integrating the detector into an automated test system via the I/O interface or RS232 port, or troubleshooting a sensor fault, this manual provides the procedures, specifications, and wiring data required.

File Details

• Manual type: Technical Reference Manual (operation, calibration, maintenance, troubleshooting)
• Brand: INFICON AB
• Product family: Sensistor ISH2000 / ISH2000C / ISH2000P Hydrogen Leak Detector
• Language: English
• Page count: 108 pages
• File format: PDF
• Document date: 2010-09-10 (main board drawing); software v6.01/v6.02 revisions listed

Chapters Covered

• A 100 – Introduction to the Sensistor ISH2000 Series — desktop, battery, and panel-mount model differences, APC system, battery runtime
• A 300 – Sensor Technologies Working Principle — MOS-FET hydrogen sensor, metal hydride layer, microprocessor signal processing, background compensation
• A 400 – Testing Methods — Detection Mode, Analysis Mode, leak location, quantifying leaks, confined-space precautions
• A 401 – About Hydrogen — flammability range, 5% H2 / 95% N2 tracer gas, forming gas safety
• A 600 – Options — option matrix per model (hand probe, C21 cable, charger, case, probe control port)
• A 700 – Sensistor ISH2000 Components — exploded views and part numbers for all three enclosures
• A 701 – Spare Parts and Accessories — AP29ECO, AP55, AP57, P50, H65, Combox, C21 cables, reference leaks, power cables, fuses, carrying case, battery charger, mounting kit
• A 800 – Technical Specifications — power supply, I/O connections, serial communication, probe control/status ports, environmental, gas sensing
• A 900 – Dimensions — dimensional drawings for ISH2000, ISH2000C, ISH2000P
• B 100 – Safety Instructions — warning/caution hierarchy, hydrogen tracer gas handling, compressed gas hazards
• B 110 – Supplies and Storage — supplied parts checklist and storage guidance
• B 210 – Connecting the Detector to the Installation — back panel ports, PC/printer/charger connection diagrams
• B 300 – Controlling the Detector with the I/O Interface — 25-pin D-sub pinout, inputs/outputs, status signals, timing diagrams
• B 310 – Controlling with a PC through RS232 — command set (K, M, N, Q, R, S, X, Z, Y), APC driver installation
• B 320 – Connecting Directly to a Printer or Another Device — printer port wiring, null modem cable, selectable printer types, analysis/detection data output
• C 100 – Getting Started — power-up sequence and probe selection
• C 200 – Control Panel — display, LEDs, push-buttons, headphone socket, Demo Mode
• C 201 – Menu System — complete menu tree from Measure Screen through Change Test Mode, Calibration, Detection/Analysis/APC/Display/General/Service Settings
• C 210 – Password — user password, password-protected calibration
• C 211 – Operation of the Leak Detector — leak detection, leak location, leak quantification, Analysis Mode sampling behavior
• C 300 – Calibration — reference gas vs reference leak, calibration procedure, intervals, low sensitivity warning, calibration messages
• C 304 – Correlation Value — unit conversion between reference and analysis units
• C 305 – Reference Values Settings — reference value with reference leak and reference gas
• C 410 – Headphones — headphone jack specifications
• C 500 – Factory Configuration — full parameter table with ranges and factory defaults
• C 570 – Date, Time, Language, Unit — clock, date, language, unit configuration
• C 580 – Service Mode and Debug Mode — service settings, APC I/O screen, debug mode
• D 100 – Preventive Maintenance — recommended spare parts list
• D 200 – General Troubleshooting Guide — symptom/fault/measure table covering probe, sensor, display, sound, battery, and memory faults
• D 300 – Reference Leak Trouble Guide — gas container filling and purging notes
• E 100 – Maintenance Operations Introduction — ESD protection, safety icons
• E 120 – Sending the Leak Detector for Repair — product return form, WEEE/RoHS
• E 130 – Functional Verification — sensitivity test with 10 ppm reference gas, acceptance levels, fault analysis flowchart
• E 140 – Service Menu — show password, system reset, detector signal level, trigg level, min calibration time, battery mode, significant digits, debug mode
• E 160 – Software and Documentation Evolution — version history 6.01/6.02
• E 230 – Sensistor ISH2000 Main Board — component locations
• E 240 – Wiring Diagram — main PCB connector map
• E 410 – Instrument Maintenance — dismantling procedures for all three models, speaker/display/panel button removal
• E 411 – Probe Maintenance — probe tip and sensor replacement, PCB and probe tube replacement, LEMO connector adjustment
• F 100 – Support by INFICON — contact and RMA procedure
• F 110 – Disposal of Product — WEEE directive compliance
• F 800 – Tools — Sensistor ISH2000 installer and APC installer instructions

The manual is built around practical field work. The early chapters explain how the MOS-FET sensor behaves and why the detector is insensitive to substances other than free hydrogen, which sets the expectations for Detection Mode versus Analysis Mode. The middle chapters give you the actual operator workflow — setting sensitivity, calibrating against a reference gas or reference leak, configuring APC timers, choosing probe types, and interpreting the display. The later chapters move into maintenance: exploded views with part numbers, wiring diagrams, dismantling steps for each enclosure variant, probe tip and sensor replacement, and a structured troubleshooting table that maps each fault symptom to a specific corrective measure. The I/O and RS232 chapters are detailed enough to integrate the detector into a PLC-driven or PC-driven test station, including pinouts, signal timing, and the command set.

What This Manual Enables You to Do

With this Sensistor ISH2000 Hydrogen Leak Detector Technical Reference Manual, you can commission and calibrate the detector correctly, whether you are using a reference leak or a certified reference gas. You can configure the Analysis Mode and Detection Mode to match your production requirements, set reject and purge levels, and adjust APC timers for active probes such as the AP29ECO sampling probe, AP55 sniffer probe, or AP57 counter flow probe. The manual gives you the pinout and signal timing to wire the probe control port into an automated fixture or PLC, and the RS232 command set to drive calibration, measurement, and print requests from a host computer.

For maintenance, the exploded component diagrams and part number tables let you identify and order the correct spare parts — hand probe sensors, O-ring seals, fuses, C21 cables, power cables, probe tip protection caps, and filters. The probe maintenance section walks through sensor replacement and probe tube removal, including the LEMO connector adjustment distance, so you can restore a probe without sending it away. The troubleshooting guide covers the common failure modes: probe and cable errors, sensor voltage and temperature errors, display faults, speaker faults, battery issues, and lost settings.

Correct calibration and reference value settings matter because the detector’s accept/reject decision is only as reliable as its calibration. This manual explains how to choose a reference size relative to your reject level, how to set the correlation value when your reference unit differs from your analysis unit, and how to interpret calibration messages such as “Repeat calibration,” “No gas or unstable signal,” “Sensitivity too low for Reject level,” and “High signal! Check reference!” It also explains the sensor condition indicator and the low sensitivity warning, so you know when a sensor is approaching the end of its useful life.

IMAGES PREVIEW

This is a downloadable PDF manual. After payment, the file is available immediately — no shipping, no waiting for a physical book. You can open it on a workshop PC, a laptop, a tablet, or a phone, print the pages you need for the bench, and search the text for the specific parameter or part number you are looking for.