Measure everywhere

The portable SPQ/SPQx-instruments from Metrum are developed to be user friendly and sufficiently small to fit for installation in delivery points and fuse boxes.
Metrum SPQfx

Facilitating accessories

The SPQ/SPQx-units are delivered in special instrument cases including specified accessories for voltage and current measurements.

Further, the instruments may be remotely controlled, and generate analysis reports directly in Microsoft Word.

Technical specifications

Measurement Inputs

Parameters Specification Information SPQ
Voltage channels 0 - 275 V RMS Up to 400/690 V as an option Standard measurement (Class A) 3
Current channels 0.05 A - 240 A RMS with standard current clamp Current clamps for other current ranges available on request 4


Parameters Specification SPQ
Supply voltage 85-264 VAC or 110-375 VDC
Power 5 W
Built-in backup Yes


Parameters Specification Information SPQ
IEC 61000-4-30 Class A Reference instrument Yes
IEC 61000-4-7 Harmonics Yes
IEC 61000-4-15 Flicker Yes
EN 50160 Compiled in the instrument Yes
EIFS 2013:1 Compiled in the instrument Yes
Norwegian injunction FoL Compiled in the instrument Yes
PQDIF format Export option Yes


Parameters Specification Information SPQ
Memory 128MB
Sampling rate 12,8 kHz
Accuracy < 0,1 %
Resolution Voltage/current channels 16 bits
Bandwidth 3,5 kHz
Input impedance Voltage channels >1 MΩ
Input impedance Current inputs For current clamps with voltage output >1 MΩ
Anti-alias filter Yes
PLL synchronization Yes


Parameters Information SPQ
RS-232 Modem port Yes
RS-232 Computer port Yes
Ethernet (RJ-45) Yes

Physical data

Parameters Information
Size (W x L x D) 160 x 240 x 60 mm
Weight 1,3 kg
Working temperature -10 °C till +55 °C
Humidity 10 % - 85 %, non-condensing