Michell Instruments S503 Specifications

Humidity and Dew-Point Instruments

Calibration

S503

Relative Humidity Generator for Calibrations

The S503 Humidity Generator enables users of humidity sensors, transmitters and portable devices to quickly and accurately generate a stable humidity in a test chamber to validate or calibrate sensors.

Highlights

Generates humidity levels between 10–90% RH•

Highly portable•

Fast stabilization of chamber humidity•

Independent reference hygrometer – optional•

Multiple sensors can be calibrated at the same time•

Technical Speciﬁ cations

Humidity

Generation range 10–90% RH in steps of 0.1% RH Accuracy ±2% RH or better (5–95% RH) Stability chamber Better than ±0.5% Stabilization time to set point <10 minutes

Temperature

Temperature accuracy ±0.3°C (±0.54°F) - internal reference Operating temperature

(ambient)

Sensor under Calibration

Voltage read out 0–1, 0–5, 0–10 V Current read out 4–20 mA Voltage supply 15 V DC, ±10% at 30 mA max

General

Probe ports 7 off – sensor body diameters 5 to 25mm

Desiccant chamber 25g (0.88oz) capacity Saturation chamber 25ml capacity, distilled water Display 3½ digit LCD, 13mm (0.5”) characters Supply 12 V DC (100 - 240 V AC adapter

Weight 1.85kg (

+15 to +35°C (+59 to +95°F)

(0.2 to 0.98”) accommodated by port adapters

included)

4.08lb)

Dimensions

Issue No: S503_97199_V2_UK_1110

Notes: Hole A = Drain hole with cap Hole B = Power hole for adapter

Please note: Michell Instruments adopts a continuous development program which sometimes necessitates speciﬁ cation changes without notice. Please contact us for latest version.

www.michell.com

Accessories and Spare Parts

0.25kg (0.55lbs) desiccant (orange) A000171 ø18.5mm (0.73") molded polymer port adpt (for ø8mm (0.31") probes) A000180 ø18.5mm (0.73") molded polymer port adpt (for ø12mm (0.47") probes) A000190 ø18.5mm (0.73") blind stop A000200 Carrying case for the S503 A000230 Water bottle A000242 Tool for changing the port adapters A000265 SS port adapter for Optidew A000272

Polymer port adpt ø18.5mm (0.73") to ø3mm (0.19") (for Optidew probe)

Blind stop for Optidew adapter A000277 Blind stop for PRT adapter A000278 Al adapter & blind stop (to be modiﬁ ed by customer) (M30x1) A000280 Al port adapter ø client speciﬁ c & blind stop (M30x1) A000280X Al port adpt for ø12mm (0.47") probe, blind stop (M30x1) A000281 Al port adpt for ø13.5mm (0.53") probe, blind stop (M30x1) A000282 Al port adpt for ø14mm (0.55") probe, blind stop (M30x1) A000283 Al port adpt for ø15mm (0.59") probe, blind stop (M30x1) A000284 Al port adpt for ø18.5mm (0.73") probe, blind stop (M30x1) A000285 Al port adpt for ø19mm (0.75") probe, blind stop (M30x1) A000286 Al port adpt for ø24mm (0.95") probe, blind stop (M30x1) A000287 Al port adpt for ø25mm (0.98") probe, blind stop (M30x1) A000288 Optidew Vision reference hygrometer with sensor OPT-V-01 Control sensor HT757T00

A000273

Humidity and Dew-Point Instruments

Calibration

S503

S503 calibration set

S503-DIG-LC

Ordering Codes

To construct the order code, select the relevant feature from the tables below, starting with the base model, which is {Feature A} and then add on options to create a string: {Feature A}+{Feature B}+{Feature C}+{Feature D}

Order example:

Relative Humidity Generator for Calibrations

Type {Feature A}

Base unit - S503, including 7 user-speciﬁ ed port adapters, power adapter, desiccant and adapter tool

Base unit - S503-DIG with extended chamber (0.54 liter extra)

Base unit -Calibration kit with Optidew adapters

- S503, with 5 user-speciﬁ ed port adapters, 2 Optidew adapters (A000272 and A000273), power adapter, desiccant and adapter tool

Base unit -Calibration kit - S503, including hand meter and probe (with calibration certiﬁ cate), 7 user-speciﬁ ed port adapters, power adapter, desiccant, distilled water bottle (water not included), adapter tool and carrying case

Adapter {Feature B}

Port adapter 12mm (0.47") 12

Port adapter 13.5mm (0.53") 13.5

Port adapter 14mm (0.55") 14

Port adapter 15mm (0.59") 15

Port adapter 18.5mm (0.73") 18.5

Port adapter 19mm (0.75") 19

Port adapter 24mm (0.94") 24

Port adapter 25mm (0.98") 25

S503-DIG+14+AUS+C

S503-DIG

S503-DIG-LC

S503-DIG-OPT

S503-DIG-SET

S503-DIG 14 AUS C

Display {Feature D}

Display in deg C C

Display in deg F F

Power {Feature C}

Australian power supply AUS

European power supply EUR

North American power supply NA

UK power supply UK