WatchGas SST4 MINI Calibration Cap SST4-MINI-CALCAP 10/pack
Description
The WatchGas SST4 MINI Calibration Cap delivers calibration gas directly and consistently to the sensor inlet of the SST4-MINI monitor — the precise connection that makes your bump tests and calibrations reproducible. Without a properly fitting calibration cap, gas can leak around the sensor face, lowering the concentration that reaches the active sensing element and producing calibration readings that understate your instrument's alarm threshold accuracy. This 10-pack keeps calibration caps on hand across a full crew's monitors, so no one skips a bump test because they're missing the right fitting.
Compatible with the
WatchGas SST4-MINI Diffusion 4-Gas Detector. For SST4-MICRO calibration caps, see the SST4-MICRO-CALCAP 10-pack. For bump-test gas kits and calibration gas cylinders, call PK Safety at
800.829.9580.
Part Number:
SST4-MINI-CALCAP (10-pack)
Technical documents:
Brochure
Specification Sheet
SST Accessories Brochure
Frequently Asked Questions
Why does a calibration cap matter for bump testing accuracy?
A calibration cap creates an airtight seal over the SST4-MINI sensor face, directing the flow from your regulator entirely through the sensor inlet. Without a properly fitting cap, calibration gas disperses around the sensor face and the actual concentration reaching the sensing element can be 15–30% lower than the cylinder label concentration. This causes the instrument to calibrate to a lower alarm threshold than intended — a compliance failure in OSHA-governed calibration programs.
How often should calibration caps be replaced?
Inspect caps at each use. Replace a calibration cap when the silicone or rubber seal shows cracking, deformation, or hardening that prevents an airtight fit. In active calibration programs running daily bump tests, cap replacement every 3–6 months is a reasonable default. Call
800.829.9580.
Is this cap compatible with the SST4-MICRO or SST4-PUMP?
No. Each SST4 variant has a distinct sensor-face geometry. The SST4-MINI-CALCAP fits only the SST4-MINI. The SST4-MICRO uses a different cap (SST4-MICRO-CALCAP), and the SST4-PUMP uses a calibration fitting integral to its pump inlet. Ordering the wrong cap variant is a common procurement error — confirm your monitor model before ordering.
What calibration gas regulator pairs with this cap?
Use the calibration cap with a fixed-flow 0.5 LPM regulator or demand-flow regulator feeding a calibration gas cylinder certified for your sensors' target gases. The
WatchGas Fixed Flow Regulator 715 Brass is the standard choice for non-reactive 4-gas mixes. For calibration gas containing H2S, use the
stainless-steel variant to prevent concentration loss through adsorption.
Can PK Safety handle calibration for SST4-MINI monitors instead of doing it in-house?
Yes. PK Safety services the full WatchGas SST line — including the SST4-MINI — with factory-trained technicians at our Alameda, CA facility. We include a calibration certificate with every service. See the
WatchGas Gas Monitor Calibration Service or call
800.829.9580.
Read more
Description
The WatchGas SST4 MINI Calibration Cap delivers calibration gas directly and consistently to the sensor inlet of the SST4-MINI monitor — the precise connection that makes your bump tests and calibrations reproducible. Without a properly fitting calibration cap, gas can leak around the sensor face, lowering the concentration that reaches the active sensing element and producing calibration readings that understate your instrument's alarm threshold accuracy. This 10-pack keeps calibration caps on hand across a full crew's monitors, so no one skips a bump test because they're missing the right fitting.
Compatible with the WatchGas SST4-MINI Diffusion 4-Gas Detector. For SST4-MICRO calibration caps, see the SST4-MICRO-CALCAP 10-pack. For bump-test gas kits and calibration gas cylinders, call PK Safety at 800.829.9580.
Part Number:
SST4-MINI-CALCAP (10-pack)
Technical documents:
Brochure
Specification Sheet
SST Accessories Brochure
Frequently Asked Questions
Why does a calibration cap matter for bump testing accuracy?
A calibration cap creates an airtight seal over the SST4-MINI sensor face, directing the flow from your regulator entirely through the sensor inlet. Without a properly fitting cap, calibration gas disperses around the sensor face and the actual concentration reaching the sensing element can be 15–30% lower than the cylinder label concentration. This causes the instrument to calibrate to a lower alarm threshold than intended — a compliance failure in OSHA-governed calibration programs.
How often should calibration caps be replaced?
Inspect caps at each use. Replace a calibration cap when the silicone or rubber seal shows cracking, deformation, or hardening that prevents an airtight fit. In active calibration programs running daily bump tests, cap replacement every 3–6 months is a reasonable default. Call 800.829.9580.
Is this cap compatible with the SST4-MICRO or SST4-PUMP?
No. Each SST4 variant has a distinct sensor-face geometry. The SST4-MINI-CALCAP fits only the SST4-MINI. The SST4-MICRO uses a different cap (SST4-MICRO-CALCAP), and the SST4-PUMP uses a calibration fitting integral to its pump inlet. Ordering the wrong cap variant is a common procurement error — confirm your monitor model before ordering.
What calibration gas regulator pairs with this cap?
Use the calibration cap with a fixed-flow 0.5 LPM regulator or demand-flow regulator feeding a calibration gas cylinder certified for your sensors' target gases. The WatchGas Fixed Flow Regulator 715 Brass is the standard choice for non-reactive 4-gas mixes. For calibration gas containing H2S, use the stainless-steel variant to prevent concentration loss through adsorption.
Can PK Safety handle calibration for SST4-MINI monitors instead of doing it in-house?
Yes. PK Safety services the full WatchGas SST line — including the SST4-MINI — with factory-trained technicians at our Alameda, CA facility. We include a calibration certificate with every service. See the WatchGas Gas Monitor Calibration Service or call 800.829.9580.
The WatchGas SST4 MINI Calibration Cap delivers calibration gas directly and consistently to the sensor inlet of the SST4-MINI monitor — the precise connection that makes your bump tests and calibrations reproducible. Without a properly fitting calibration cap, gas can leak around the sensor face, lowering the concentration that reaches the active sensing element and producing calibration readings that understate your instrument's alarm threshold accuracy. This 10-pack keeps calibration caps on hand across a full crew's monitors, so no one skips a bump test because they're missing the right fitting.
Compatible with the WatchGas SST4-MINI Diffusion 4-Gas Detector. For SST4-MICRO calibration caps, see the SST4-MICRO-CALCAP 10-pack. For bump-test gas kits and calibration gas cylinders, call PK Safety at 800.829.9580.
Part Number:
SST4-MINI-CALCAP (10-pack)
Technical documents:
Brochure
Specification Sheet
SST Accessories Brochure
Frequently Asked Questions
Why does a calibration cap matter for bump testing accuracy?
A calibration cap creates an airtight seal over the SST4-MINI sensor face, directing the flow from your regulator entirely through the sensor inlet. Without a properly fitting cap, calibration gas disperses around the sensor face and the actual concentration reaching the sensing element can be 15–30% lower than the cylinder label concentration. This causes the instrument to calibrate to a lower alarm threshold than intended — a compliance failure in OSHA-governed calibration programs.
How often should calibration caps be replaced?
Inspect caps at each use. Replace a calibration cap when the silicone or rubber seal shows cracking, deformation, or hardening that prevents an airtight fit. In active calibration programs running daily bump tests, cap replacement every 3–6 months is a reasonable default. Call 800.829.9580.
Is this cap compatible with the SST4-MICRO or SST4-PUMP?
No. Each SST4 variant has a distinct sensor-face geometry. The SST4-MINI-CALCAP fits only the SST4-MINI. The SST4-MICRO uses a different cap (SST4-MICRO-CALCAP), and the SST4-PUMP uses a calibration fitting integral to its pump inlet. Ordering the wrong cap variant is a common procurement error — confirm your monitor model before ordering.
What calibration gas regulator pairs with this cap?
Use the calibration cap with a fixed-flow 0.5 LPM regulator or demand-flow regulator feeding a calibration gas cylinder certified for your sensors' target gases. The WatchGas Fixed Flow Regulator 715 Brass is the standard choice for non-reactive 4-gas mixes. For calibration gas containing H2S, use the stainless-steel variant to prevent concentration loss through adsorption.
Can PK Safety handle calibration for SST4-MINI monitors instead of doing it in-house?
Yes. PK Safety services the full WatchGas SST line — including the SST4-MINI — with factory-trained technicians at our Alameda, CA facility. We include a calibration certificate with every service. See the WatchGas Gas Monitor Calibration Service or call 800.829.9580.
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Specifications
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