RS PRO S2
 | |
| Status | in progress |
|---|---|
| Source code | appa-dmm |
| Counts | 6000 |
| IEC 61010-1 | CAT III (1000V) / CAT IV (600V) |
| Connectivity | Bluetooth LE |
| Measurements | voltage, frequency, resistance, continuity, diode, capacitance, current, temperature |
| Features | autorange, data hold, min/max, relative, non-contact voltage detection hi/lo, backlight, true-rms, data logging, single value storage, auto-v/loz, VFD, built-in magnetic sticker, µA current range |
| Website | rsonline-privat.de |
The RS PRO S2 is a 6000 counts, CAT IV (600V) / CAT III (1000V) handheld logging digital multimeter with Bluetooth LE connectivity and long battery duration. It is marketed as a "HVAC Multimeter" (optimized for the needs of heating, ventilation, and air conditioning technicians).
It is based on the APPA S2, See also: APPA Multimeters.
A sigrok-driver supporting these APPA-based devices ("appa-dmm" in sigrok) has been created and will be included in mainline sigrok once it passes acception (see developement repository github.com/Cymaphore/libsigrok branch appa-dmm).
Hardware
- MCU: Atmel ATSAML22N18A-U
- ADC-ID: Hycontek HY12P65
- BLE-SoC: AMICCOM A8105
- Fuses:
- Current range 400mA: Amp rating: 0.44A, Voltage rating: 1kV, Interrupting rating: 10kA, Opening: Fast acting, Size: 10mm x 34.9mm
- Power supply: 2 x IEC LR6 1.5V (works fine with IEC HR6 1.2V)
Photos and Teardown
Front view
S2 connected to SmuView visualizing readings from the power grid
Measuring voltage from the power grid
Display close-up with backlight on
Rear view
Magnetic sticker close up
Magnetic sticker inside view
Protective sleeve removed
Rear
Teardown 1/12
Teardown 2/12
Teardown 3/12
Teardown 4/12
Teardown 5/12
Teardown 6/12
Teardown 7/12
Teardown 8/12
Teardown 9/12
Teardown 10/12
Teardown 11/12
Teardown 12/12
