SignalFire PowerPAK On-Demand Field Power Supply

Intrinsically safe battery power pack that screws into field instruments — Class I Division 1 rated, DIP-settable on-time (1–10 min or always on), and push-for-power for 4–20 mA and HART transmitters plus loop-powered displays.

Key advantages

Hazardous-area certified — Class I Div 1 Groups C–D T3; Zone 0 AEx ia IIB T3 Ga / Ex ia IIB T3 Ga (OEM page).
On-demand power — External push button plus DIP on-time: 1 / 2 / 5 / 10 min or Always On; no setup software.
Loop-friendly output — About 18.9 VDC @ 4 mA and 15.7 VDC @ 20 mA for 4–20 mA / HART devices and loop displays.
Field endurance — Replaceable 3.6 V D-size Li-SOCl₂ pack; OEM life ≈350 h @ 4 mA / 100 h @ 12 mA / 50 h @ 20 mA.
Outdoor enclosure — IP64 UV-rated polycarbonate; ½ in NPT; −40…+85 °C operating (Ex Tamb per certificate).

Typical applications

Powering 4–20 mA transmitters where line power is unavailable.
HART device checks and temporary loop power in classified areas.
Loop-powered local displays at well pads or tank farms.
Maintenance carts needing C1D1-rated portable instrument power.

Selection guide

On-time — Choose DIP interval vs Always On for battery budget.
Load current — Size runtime from 4 / 12 / 20 mA life figures.
Connection — ½ in NPT into the instrument; 16 AWG screw terminals inside.
Model — OEM how-to-order lists PowerPak-1BIS.

Common mistakes

Leaving Always On when intermittent push-for-power would multiply battery life.
Ignoring Ex Tamb limits on the certificate when ambient exceeds the marked range.
Expecting continuous year-long runtime at 20 mA — OEM cites about 50 hours at that load.
Using non-approved battery replacements that void the C1D1 rating.

When to RFQ / what to tell us

Confirm PowerPak-1BIS; quantity; ship-to; any spare battery needs.

Request a Quote · Get selection help

Specs

Spec	Value
SKU	49066
Brand	SignalFire Wireless Telemetry
Model	PowerPAK (PowerPak-1BIS)
Product type	Battery on-demand field power supply
Output	18.9 VDC @ 4 mA; 15.7 VDC @ 20 mA
On-time	1 / 2 / 5 / 10 min or Always On (DIP)
Battery	3.6 VDC D-size Li-SOCl₂ (replaceable)
Battery life (OEM)	≈350 h @ 4 mA; 100 h @ 12 mA; 50 h @ 20 mA
Operating temp	−40…+185 °F (−40…+85 °C)
Humidity	0–100% condensing
Enclosure	IP64 industrial polycarbonate, UV rated
Connection	½ in NPT; 16 AWG screw terminals
Size / weight	4.9 × 3.7 × 2.2 in; ≈1 lb (0.6 kg)
Safety (OEM)	C1D1 Grps C–D T3; Zone 0 ia IIB T3 Ga

Documents

FAQ

Q: What does it power? A: OEM positions it for 4–20 mA / HART field devices and loop-powered external displays.

Q: Is software required? A: No — DIP switches set on-time; push button requests power.

Q: What should I send for a quote? A: Confirm PowerPak-1BIS, quantity, ship-to, spare batteries if needed.