Rice Lake MSI-7300 Dyna-Link 2 Dynamometer

Portable digital tension dynamometer for crane, rigging, and load-monitoring duty — capacities from 1,000 to 550,000 lb, accuracy 0.1% FS to 100,000 lb (0.5% FS at 120,000 lb and above), NEMA Type 4 / IP65 aircraft-aluminum body, peak hold / tare / total / setpoints, RS-232, and optional RF link to MSI-8000 / 8000HD remotes.

Key advantages

Wide capacity span — 1,000…550,000 lb models with Crosby shackle interface options.
0.1% FS accuracy — to 100,000 lb (0.5% FS above 120,000 lb) per OEM.
NEMA 4 / IP65 — anodized 2024 aluminum (zinc-plated 4340 steel at 100,000 lb+).
Long battery life — 150…300 h typical (C- or D-cell by capacity); ~25–30 h with RF modem.
Remote options — RF modem for MSI-8000 / 8000HD / TranSend; Rugged Remote; Wi-Fi configs listed.

Typical applications

Crane and hoist tension / load monitoring.
Rigging, surveying, and staging load checks.
Peak-hold proof tests and setpoint alarms.
Wireless remote-display weighing with MSI-8000 family.

Selection guide

Capacity / resolution — e.g. 1k (0.5 lb) … 100k (50 lb) F/A; higher RF-bundled capacities to 550k.
Power — two C-cells ≤10,000 lb; two D-cells ≥25,000 lb.
Connectivity — base RS-232; optional RF modem / Wi-Fi / MSI-8000 packages.
Accessories — Crosby top/bottom shackles, transport case, serial cable, audible alarm.
Environment — operating −4…140 °F (−20…60 °C); design overload 200% safe / 700% ultimate (except where noted).

Common mistakes

Ordering a low capacity for proof loads near the next frame size.
Expecting 300 h runtime with RF modem installed (~25–30 h typical).
Skipping shackles when the lift hardware is not already Crosby-compatible.
Ignoring Overhead Weighing Safety Guide limits for the chosen capacity.

When to RFQ / what to tell us

Capacity (and RF/Wi-Fi package if needed).
Shackles, case, remote display model.
Serial/RF accessories; quantity; ship-to.
Any peak-hold / setpoint application notes.

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Specs

Spec	Value
SKU	44628
Brand	Rice Lake Weighing Systems
Model	MSI-7300 Dyna-Link 2
Product type	Digital tension dynamometer / crane scale
Capacity range	1,000 to 550,000 lb (model dependent)
Accuracy	0.1% FS to 100,000 lb; 0.5% FS at 120,000 lb and above
Display	5-digit 1.22 in LCD (≤50k); 6-digit 1.00 in LCD (≥100k)
Units	lb, kg, kN, ton, metric ton
Protection / material	NEMA Type 4, IP65; 2024 aluminum (steel at 100k+)
Operating temperature	−4…140 °F (−20…60 °C)
Data output	RS-232; optional RF / Wi-Fi
Notes	Specs from ricelake.com MSI-7300 page and m_msi7300.pdf. Confirm capacity PN before order.

Documents

FAQ

Q: Dynamometer or crane scale? A: OEM positions MSI-7300 Dyna-Link 2 as a digital tension dynamometer for sling/load tension; it is commonly used in crane/rigging load monitoring.

Q: Do I need the RF remote? A: Base units are local LCD + RS-232. Add RF modem packages when MSI-8000 / 8000HD remote control is required.

Q: What should I send for a quote? A: Capacity, RF/Wi-Fi need, shackles/case, quantity, ship-to. Compatible with systems using Rice Lake MSI-7300 if you need a drop-in check — we do not claim authorized-dealer status.