ProSCT SPD Component Tester
Raycap ProSCT (SPD Component Tester) is a portable measuring device that tests commonly used components in surge arresters—gas discharge tube (GDT), metal oxide varistor (MOV), and transient voltage suppressor (TVS). It can test up to 1500 V DC, automatically detects the type of connected component, and lists measurements in LOG mode. The battery-operated device with an internal charger features a 320 × 240 pixel color TFT touch screen and robust housing.
It is not possible to visually determine the integrity of a surge arrester. The green flag indicator only shows whether the thermal disconnector has activated—not the extent of varistor degradation. The decision to replace a suspicious module or continue its use requires measurement.
ProSCT was developed to perform this measurement in the field. The device tests the three main protection elements used in surge arresters:
- MOV (Metal Oxide Varistor) — Breakdown voltage measurement, with selectable test current (0.1 mA / 0.5 mA / 1 mA). Measurement error 1.5% ± 2 digits.
- GDT (Gas Discharge Tube) — Ignition voltage measurement, with selectable voltage ramp (100 V/s / 1000 V/s). Measurement error 1.6% ± 2 digits at 100 V/s, 3.5% ± 2 digits at 1 kV/s.
- TVS (Transient Voltage Suppressor) — Diode-based suppressor measurement.
Maximum test voltage is 1500 V DC — allowing testing of both LV and PV (1500 V) class components.
The device automatically detects the type of connected component — the user does not need to pre-select a mode. LOG mode displays a list of sequential measurements; all modules in a panel can be tested in sequence and results compared.
The 320 × 240 pixel color TFT display and touch interface simplify use. The device operates on a rechargeable battery (included), features an internal charger, and is suitable for field conditions with its robust ABS (UL-94-HB) housing. Versions with a carrying case are available.
The ProSCT SPD Adapter (optional accessory) is used to connect the DIN rail base unit to the ProSCT device. The base unit is designed to accept different generations of Raycap SPD modules: older SPD flat contacts, NPE bullet contact, and two new SPD spring contacts (for 1 TE and 2 TE modules). It connects to the device with a banana plug cable.
Products comply with EN 61626-1 and IEC 61010-1 standards; RoHS and CE certified.
- MOV, GDT, and TVS measurement
- GDT and MOV testing up to 1500 V DC
- Automatic detection of connected component type
- LOG mode — displays a list of sequential measurements
- Color TFT display (320 × 240 pixels) and touch interface
- Rechargeable battery included
- Internal battery charger
- Portable, battery-operated device
- Robust housing — UL-94-HB ABS
- MOV test current options: 0.1 mA / 0.5 mA / 1 mA
- GDT voltage ramp options: 100 V/s / 1000 V/s
- Versions with carrying case and SPD adapter
- Protection class: IP 20
- Operating temperature: -10 °C … +50 °C
- Standards: EN 61626-1, IEC 61010-1
- Certifications: RoHS, CE
Technical data — ProSCT
| ProSCT | |
|---|---|
| Order code (device) | 130 574 |
| Order code (with carrying case) | 130 576 |
| Order code (case + SPD adapter) | 130 572 |
| MOV & ABD test current | 0.1 mA / 0.5 mA / 1 mA |
| GDT voltage ramp | 100 V/s / 1000 V/s |
| Maximum test voltage | 1500 V DC |
| MOV measurement error | 1.5% ± 2 digits |
| GDT measurement error | 3.5% ± 2 digits (1 kV/s) / 1.6% ± 2 digits (100 V/s) |
| Display | 320 × 240 pixel color TFT, touch |
| Operating temperature | -10 °C … +50 °C |
| Housing material | UL-94-HB ABS |
| Protection class | IP 20 |
| Packaging dimensions (case) | 115 × 256 × 363 mm |
| Weight | 1100 g |
| Standards | EN 61626-1, IEC 61010-1 |
| Certifications | RoHS, CE |
Technical data — SPD Adapter
| SPD Adapter | |
|---|---|
| Order code | 130 575 |
| Connection to tester | Banana jack |
| Connection to SPD modules | Older SPD flat contacts, NPE bullet contact, 2 new SPD spring contacts (for 1 TE and 2 TE modules) |
| Number of connection sockets | 4 (for different SPD module types) |
| Supported module width | 1 TE and 2 TE (2 TE only for new SPD spring contacts) |
| Operating temperature | -10 °C … +50 °C |
| Packaging dimensions | 102 × 64 × 110 mm |
| Weight | 175 g |
| Standard | IEC 61010-1 |
| Certifications | RoHS, CE |
ProSCT is used in situations where the condition of surge arresters and protection components needs to be verified by measurement:
- Field maintenance and inspection teams — On-site testing of surge arrester modules
- Periodic maintenance programs — Decision on module replacement based on measurement
- Post-lightning inspection — Verification of protection elements after a strike
- LV distribution panels — Testing of MOV and GDT based SPD modules
- Solar power plants (PV) — 1500 V DC class component testing
- Wind power plants — Modules in harsh impulse conditions
- Telecom base stations — Inspection of signal and power SPDs
- Critical infrastructure facilities — Hospitals, data centers, substations
- Industrial facilities — Factory and production panels
- Different generations of Raycap SPD modules — Compatibility with old and new modules via adapter
- Commissioning processes — Pre/post-installation verification
- Screening of suspicious modules — Preventing unnecessary replacement of functional modules
- Service and test laboratories — MOV, GDT, and TVS component measurement
- Mobile field use — Battery-operated, with carrying case
