GM9907-LB Multi-Material Batching Controller
Quick specs
| I/O & Performance | |
|---|---|
| Inputs | 12 digital inputs, opto-isolated, low-level effective |
| Outputs | 16 digital outputs, open-collector, 500 mA driving / 3 A full load |
| Communication | RS-232 (TXD/RXD/GND) and RS-485 (A/B/GND), MODBUS-RTU, MODBUS-TCP, USB port |
| A/D speed | 24-bit Sigma-Delta, 120 / 240 / 480 / 960 conversions per second |
| Resolution | 1 / 100,000 (max display); input sensitivity 0.02 µV/d |
| Connection | |
| Display | 7-inch resistive touch screen, English |
| Load cell excitation | DC 5 V, 125 mA max (supports 6-wire load cells) |
| Physical & Environment | |
| Power supply | DC 24 V, ~15 W (power filter included) |
| Operating temperature | -10 ℃ to +40 ℃ |
| Operating humidity | ≤90% RH, non-condensing |
| Enclosure | Panel-mount; cut-out 179 × 113 mm (±1 mm tolerance), fixed via M3×10 screws on side plates |
| Dimensions | 190 × 124 × 48 mm (W × H × D) |
Applications
- Concrete & Bitumen Batching Plants
- Animal Feed Milling
- Fertilizer & Chemical Blending
- Metallurgy & Mineral Batching
- Mortar, Plaster & Pre-Mix Production
VARIANTS
Designed for recipe-based multi-material production
Batching is the controlled combination of multiple ingredients into a single batch: concrete, animal feed, fertilizer blends, mortar mixes, chemical reactor charges. The GM9907-LB is purpose-built to manage this sequence: it stores recipes, sequences the feeders, watches each material’s target weight, switches between coarse and fine flow, handles over/under tolerance, and totalises the result.
Key batching capabilities
| Feature | GM9907-LB |
|---|---|
| Materials per batch | Up to 12 with customizable sequence |
| Recipe storage | Multi-recipe storage, USB import / export |
| Flow control | Coarse / medium / fine flow, per-material setting |
| Real-time monitoring | Dynamic status display, low-flow alarms |
| Power-loss safety | Automatic settings recovery on power restore |
| I/O | 12 inputs / 16 outputs, opto-isolated |
| Communication | RS-232, RS-485, MODBUS-TCP, USB |
How it fits in a batching plant
Concrete and asphalt: sequence cement, aggregate, sand, water and admixtures into the mixer with consistent ratios per recipe. Feed milling: blend protein, energy and micro-ingredient streams to the formulation specification. Chemical and pharmaceutical blending: dispense multiple raw materials into a reactor or blender with traceability via Modbus to a SCADA or ERP system.
OEM & ODM ready
Built for integration into your line, your machine, or your brand.
As General Measure’s South African partner, R&D Weighing supports OEM and ODM engagements across the controller range. From private-label badging through to custom enclosures, communication protocols, and full system integration with your existing PLC, MES, or ERP environment.
- Private-label finishing & branding
- Custom enclosure & mounting options
- PLC / MES / ERP integration
- Bespoke communication / protocol configurations
- Multi-line synchronisation
- Engineering support throughout commissioning
The batching controller GM9907-LB manages multi-material recipe sequences for concrete batching plants, feed mills, chemical blending operations and mineral processing in South Africa. With recipe storage for up to 12 materials per batch and full Modbus integration to supervisory PLCs, the LB handles the discharge sequencing, cutoff control and per-material tolerance checks that production batching demands.
Recipe-based batching for production
Where a packing controller dispenses one product into one bag, a batching controller dispenses multiple ingredients in sequence into a single batch. Flour, yeast, salt and water into a dough mixer; cement, sand, aggregate and water into a concrete drum; ingredient powders into a feed mill blender. The GM9907-LB stores up to 99 recipes, each specifying up to 12 materials with target weights, tolerance bands and per-material cutoff timing. The controller sequences the discharge gates, monitors weight progress, and flags any material that falls outside tolerance for the operator's attention before the next batch starts.
Integration with material handling and supervisory systems
The LB drives discharge gates, screws, conveyors and dosing pumps through its digital I/O outputs, while reading hopper-level sensors, route-confirmation switches and gate-position feedback through its inputs. Modbus TCP communication to the supervisory PLC lets the SCADA system push recipe changes from the central control room and pull back per-batch logs for production traceability. Required for HACCP, GMP and ISO-certified production lines.
Frequently asked questions
How many materials per batch can the GM9907-LB handle?
Up to 12 materials per recipe, with up to 20 different recipes stored on the controller. For most concrete, feed and chemical batching applications this is more than sufficient. A typical concrete batch uses 4-6 materials, a typical feed batch uses 6-10.
Can the GM9907-LB handle gain-in-weight and loss-in-weight in the same recipe?
Yes. Each material in a recipe can be configured as gain-in-weight (cumulative add into the batch hopper, the most common mode) or loss-in-weight (dispense from a supply hopper that sits on its own load cells, used for sticky or fragile ingredients). Mixed-mode recipes are supported within a single batch sequence.
Does the GM9907-LB log batch data for production traceability?
Yes. Per-batch data (actual vs target weights per material, tolerance pass/fail flags, operator ID, timestamp and recipe ID) is stored on the controller and pushed via Modbus TCP to the supervisory PLC or directly to a production data historian. This satisfies HACCP, GMP and ISO traceability requirements for batch records.
