Gaposa SPM10 Manual

The Gaposa SPM10 is a professional-grade 10-inch digital panel meter designed for precise voltage and current measurement in industrial and laboratory environments. It features a high-resolution LCD display, multiple measurement modes (AC/DC voltage, AC/DC current, resistance), data logging capability, RS-232 communication interface, programmable alarms, and rugged IP65-rated housing. Powered by 100-240V AC or optional DC input. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: High-resolution LCD display, Function buttons, Measurement terminals, RS-232 port, Power input, Alarm outputs.

Feature	Description
Measurement terminals	For voltage, current, and resistance probe connections
RS-232 port	For computer communication and data transfer
Alarm outputs	Programmable relay contacts for high/low limits
Function buttons	Mode selection, range, hold, and menu navigation
Power input	For AC/DC power connection
LCD display	Backlit digital readout with bargraph
MODE	Selects measurement function (V, A, Ω)
RANGE	Manual/Auto range selection
HOLD	Freezes current reading
POWER	Turns meter on/off

Installation

Unpack and inspect contents. Mount in panel or use standalone.

1. Mounting: Use provided brackets for panel mount; ensure adequate ventilation.
2. Connect power: Attach AC adapter to power input or connect DC source (9-30V).
3. Connect probes: Attach measurement leads to appropriate terminals.
4. Connect communication: Attach RS-232 cable to computer if needed.

WARNING! Ensure power is disconnected before making connections. Use proper personal protective equipment when measuring high voltage/current.

First-Time Setup

Power on meter; configure initial settings.

1. Select measurement mode: Press MODE to choose voltage, current, or resistance.
2. Set range: Press RANGE for auto or manual range selection.
3. Configure display: Use MENU to set brightness, contrast, and backlight timeout.
4. Set communication parameters: Configure RS-232 baud rate and protocol if used.

CAUTION! Do not exceed maximum input ratings. Verify probe connections before applying power.

Specifications

• Display: 10-inch LCD with backlight.
• Measurement Functions: DC Voltage, AC Voltage, DC Current, AC Current, Resistance.
• Accuracy: ±0.1% of reading + 2 digits (DC voltage).
• Input Protection: 600V CAT III rated.
• Communication: RS-232 standard, Modbus RTU optional.
• Data Logging: Internal memory for 10,000 readings.
• Alarms: Two programmable relay outputs.
• Power Source: 100-240V AC, 50/60Hz or 9-30V DC.
• Operating Temp: 0°C to 50°C (32°F to 122°F).

Controls and Settings

Access menu via MENU button. Front Panel: POWER, MODE, RANGE, HOLD, MENU.

Remote Control: Not included; all functions accessible via front panel.

Measurement Settings: MODE selection, range (auto/manual), filter settings, relative reference. Display: Brightness, contrast, backlight timeout, bargraph enable. System: Language (ENGLISH default), beeper on/off, calibration lock. Communication: Baud rate (9600 default), parity, stop bits, device address. Alarms: High/low limits, hysteresis, relay action.

Connecting Measurement Probes

Voltage: Use V/Ω terminals. Current: Use A terminals with appropriate shunt. Resistance: Use V/Ω terminals.

1. Turn off power to circuit before connecting probes.
2. Connect black lead to COM terminal.
3. Connect red lead to appropriate terminal for measurement type.
4. Ensure secure connections to prevent arcing.

Tip: Use proper probe accessories for high voltage measurements. Never touch exposed metal parts during measurement.

Measurement Modes

Supports DC/AC voltage (0-600V), DC/AC current (0-10A), resistance (0-40MΩ).

1. Select mode: Press MODE repeatedly to cycle through functions.
2. Connect probes: Ensure proper connection for selected mode.
3. Apply signal: Power on circuit being measured.
4. Read value: Display shows measured value with appropriate units.
5. Use HOLD: Press HOLD to freeze reading for recording.
6. Relative measurement: Press REL to set current reading as zero reference.
7. Filter: Enable in menu to stabilize fluctuating readings.
8. Min/Max: Access via MENU to view minimum and maximum values.

WARNING! Do not exceed maximum input ratings. Use current shunt for currents above 10A. Disconnect power before changing measurement mode.

Data Logging & Communication

Data Logging: Configure in MENU > Data Log. Set interval (1s to 1hr), start/stop manually or by trigger. Communication: RS-232 for real-time data streaming or configuration. Modbus RTU for industrial networks.

Care & Cleaning

Unplug before cleaning. Use slightly damp cloth with mild detergent; dry thoroughly. Do not use solvents or abrasives.

CAUTION! Never immerse meter in liquid. Keep display protected from sharp objects.

Regulatory Information

CE Compliant: Meets European EMC and Low Voltage Directive requirements. FCC Part 15: Class A digital device; may cause interference in residential areas. Copyright © 2023 Gaposa Instruments; all rights reserved. For calibration and service, contact authorized service centers only. For support, visit www.gaposa-instruments.com or contact +1-800-555-1234.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display	Power connection	Check power cable; verify voltage; check fuse.
Inaccurate readings	Calibration/probes	Perform calibration; check probe connections; replace damaged probes.
Communication failure	Cable/settings	Check RS-232 cable; verify baud rate and parity settings; restart meter.
Overload indication	Input exceeded	Disconnect input; verify measurement range; check for short circuit.
Data logging not working	Memory full/settings	Clear memory; verify logging interval; check start trigger.

Reset: MENU > System > Factory Reset to restore defaults.

Service: +1-800-555-1234; www.gaposa-instruments.com